<?xml version='1.0' encoding='UTF-8'?><rss xmlns:atom="http://www.w3.org/2005/Atom" xmlns:openSearch="http://a9.com/-/spec/opensearchrss/1.0/" xmlns:blogger="http://schemas.google.com/blogger/2008" xmlns:georss="http://www.georss.org/georss" xmlns:gd="http://schemas.google.com/g/2005" xmlns:thr="http://purl.org/syndication/thread/1.0" version="2.0"><channel><atom:id>tag:blogger.com,1999:blog-3550204829234352390</atom:id><lastBuildDate>Fri, 30 Oct 2026 06:37:39 +0000</lastBuildDate><category>數學考題</category><category>數學錦囊</category><category>雜七雜八</category><category>程式設計</category><category>好書推薦</category><category>腦力激盪</category><category>電機電子</category><category>橋牌專欄</category><category>ROSA (Arduino)</category><category>Andy奇想</category><category>LEGO MINDSTORMS NXT</category><category>英語學習</category><category>學習心得</category><category>工作感想</category><category>商品評論</category><category>桌遊好玩</category><category>四格拼圖</category><category>研發管理</category><category>排列組合</category><category>社區管理</category><category>航海天文</category><category>行動裝置</category><category>Python 程式</category><category>ROBI 機器人</category><category>待解難題</category><category>其它機器人</category><category>科學知識</category><category>Arduino</category><category>Micro:bit</category><title>研發養成所 ( Bridan&amp;#39;s Blog - 4rdp, For R&amp;amp;D Person )</title><description></description><link>http://4rdp.blogspot.com/</link><managingEditor>noreply@blogger.com (Bridan)</managingEditor><generator>Blogger</generator><openSearch:totalResults>1572</openSearch:totalResults><openSearch:startIndex>1</openSearch:startIndex><openSearch:itemsPerPage>25</openSearch:itemsPerPage><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-4945971810605233859</guid><pubDate>Thu, 29 Oct 2026 00:00:00 +0000</pubDate><atom:updated>2026-10-29T08:00:00.112+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">科學知識</category><category domain="http://www.blogger.com/atom/ns#">雜七雜八</category><title>A4 尺寸設計的巧思</title><description>&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/cP_Y9n23cmQ&quot; width=&quot;320&quot; youtube-src-id=&quot;cP_Y9n23cmQ&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;看過影片後才知道 A4 紙張的比例是 1 :&amp;nbsp;&lt;span face=&quot;Arial, sans-serif&quot; style=&quot;background-color: white; white-space: pre-wrap;&quot;&gt;√2 ，紙張大小由 1922 德國人制定出來。&lt;/span&gt;&lt;/div&gt;&lt;br /&gt;&lt;p&gt;&lt;/p&gt;</description><link>http://4rdp.blogspot.com/2026/10/a4.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/cP_Y9n23cmQ/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-1332884091052456773</guid><pubDate>Sun, 25 Oct 2026 00:00:00 +0000</pubDate><atom:updated>2026-10-25T08:00:00.111+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學考題</category><title>訓練數學感 448 ─ MATH</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhIUKY0x-tUVRPyXMFbvczVtveIpVz-8ePu6LWbTXJjm09KKfb4YbKcwkuNxeBV0-ruprQFzxaNr2Aaf0AT4ompN2Y-pD6QkYF3atwnz4ZgRKSPo2G4UbUDrv_KKwtBt3EWxswGSxKyRciiFADP3MwYPlM90FEcerdHAuDHf_OsgTsCktrZo3F_ymw8LxTo/s825/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-09-14%20154203.png&quot; imageanchor=&quot;1&quot; style=&quot;clear: left; float: left; margin-bottom: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;825&quot; data-original-width=&quot;701&quot; height=&quot;320&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhIUKY0x-tUVRPyXMFbvczVtveIpVz-8ePu6LWbTXJjm09KKfb4YbKcwkuNxeBV0-ruprQFzxaNr2Aaf0AT4ompN2Y-pD6QkYF3atwnz4ZgRKSPo2G4UbUDrv_KKwtBt3EWxswGSxKyRciiFADP3MwYPlM90FEcerdHAuDHf_OsgTsCktrZo3F_ymw8LxTo/s320/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-09-14%20154203.png&quot; width=&quot;272&quot; /&gt;&lt;/a&gt;&lt;/div&gt;如左圖，求 MATH。&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;難度 &lt;span style=&quot;font-size: 16px; white-space: pre-wrap;&quot;&gt;✩&lt;/span&gt;&lt;br /&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;如果這題數值可以重複的話，可以有很多解。&lt;/div&gt;&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/10/448-math.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhIUKY0x-tUVRPyXMFbvczVtveIpVz-8ePu6LWbTXJjm09KKfb4YbKcwkuNxeBV0-ruprQFzxaNr2Aaf0AT4ompN2Y-pD6QkYF3atwnz4ZgRKSPo2G4UbUDrv_KKwtBt3EWxswGSxKyRciiFADP3MwYPlM90FEcerdHAuDHf_OsgTsCktrZo3F_ymw8LxTo/s72-c/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-09-14%20154203.png" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-8614077538862192267</guid><pubDate>Wed, 21 Oct 2026 00:00:00 +0000</pubDate><atom:updated>2026-10-21T08:00:00.117+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學錦囊</category><title>伽瑪函數 (Gamma function)</title><description>&lt;br /&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/Hhb22MxfxWk&quot; width=&quot;320&quot; youtube-src-id=&quot;Hhb22MxfxWk&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div style=&quot;text-align: left;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div style=&quot;text-align: left;&quot;&gt;$ \Gamma (x)=\int_{0}^{\infty }{t}^{x-1}{e}^{-t}dt$&lt;/div&gt;&lt;div style=&quot;text-align: left;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div style=&quot;text-align: left;&quot;&gt;以前只知道背公式，現在了解典故了。&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/10/gamma-function.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/Hhb22MxfxWk/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-1892416740126348832</guid><pubDate>Sat, 17 Oct 2026 00:00:00 +0000</pubDate><atom:updated>2026-10-17T08:00:00.205+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">科學知識</category><title>核磁共振 (MRI)</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/HIxO2hx9GyY&quot; width=&quot;320&quot; youtube-src-id=&quot;HIxO2hx9GyY&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;&lt;a href=&quot;https://zh.wikipedia.org/zh-tw/%E6%A0%B8%E7%A3%81%E5%85%B1%E6%8C%AF&quot; target=&quot;_blank&quot;&gt;核磁共振&lt;/a&gt; (磁振造影) 的原理是利用強磁對體內水分子震盪作用，讓水中氫原子自旋，記錄由身體發出的信號，沒有輻射，但檢查時間較長（約20至30分鐘以上），且受檢者必須保持不動，此外，因為磁振必須卸除身上金屬物件。&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;&lt;a href=&quot;https://zh.wikipedia.org/wiki/%E8%AE%A1%E7%AE%97%E6%9C%BA%E4%BD%93%E5%B1%82%E6%88%90%E5%83%8F&quot; target=&quot;_blank&quot;&gt;電腦斷層&lt;/a&gt; (CT) 有使用 X 光，&lt;span style=&quot;font-family: Arial, sans-serif, &amp;quot;Noto Color Emoji&amp;quot;; font-size: 16px;&quot;&gt;有輻射，但速度快、適合急診創傷或肺部快速掃描。&lt;/span&gt;&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/10/mri.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/HIxO2hx9GyY/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-8021222020050037928</guid><pubDate>Tue, 13 Oct 2026 00:00:00 +0000</pubDate><atom:updated>2026-10-13T08:00:00.114+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學考題</category><title>訓練數學感 447 ─ 圓心曲線</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_N_hQ6f_wO00ixot4-zWx16ihdKHKs6n_mmo9c1zOZn6TlWxUk1qCpaf2zcvbBnWj7leNoYYzDms1WVaxOHaWCv2faELY_nKMQJRWoxpyCWzB-jws4tY3EBUK5s-5od8Evh7zhgIruCGOGqtXltkaM7LDp-GQKyjVWwqFF5cCQSOjqDpFaSupJpFF3xpx/s567/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-09-08%20160336.png&quot; imageanchor=&quot;1&quot; style=&quot;clear: left; float: left; margin-bottom: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;295&quot; data-original-width=&quot;567&quot; height=&quot;166&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_N_hQ6f_wO00ixot4-zWx16ihdKHKs6n_mmo9c1zOZn6TlWxUk1qCpaf2zcvbBnWj7leNoYYzDms1WVaxOHaWCv2faELY_nKMQJRWoxpyCWzB-jws4tY3EBUK5s-5od8Evh7zhgIruCGOGqtXltkaM7LDp-GQKyjVWwqFF5cCQSOjqDpFaSupJpFF3xpx/s320/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-09-08%20160336.png&quot; width=&quot;320&quot; /&gt;&lt;/a&gt;&lt;/div&gt;半圓內繪製不同半徑內切圓，請問將這些圓心連接可繪製出甚麼曲線？&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;難度&amp;nbsp;&lt;span style=&quot;font-size: 16px; white-space: pre-wrap;&quot;&gt;✩&lt;/span&gt;&lt;span style=&quot;font-size: 16px; white-space: pre-wrap;&quot;&gt;✩&lt;/span&gt;&lt;span style=&quot;font-size: 16px; white-space: pre-wrap;&quot;&gt;✩&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-size: 16px; white-space: pre-wrap;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style=&quot;font-size: 16px; white-space: pre-wrap;&quot;&gt;這個圓心曲線國中有學過，但是相關性質還是高中數學才會說明清楚。&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style=&quot;font-size: 16px; white-space: pre-wrap;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/10/447.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_N_hQ6f_wO00ixot4-zWx16ihdKHKs6n_mmo9c1zOZn6TlWxUk1qCpaf2zcvbBnWj7leNoYYzDms1WVaxOHaWCv2faELY_nKMQJRWoxpyCWzB-jws4tY3EBUK5s-5od8Evh7zhgIruCGOGqtXltkaM7LDp-GQKyjVWwqFF5cCQSOjqDpFaSupJpFF3xpx/s72-c/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-09-08%20160336.png" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-6076303151043787159</guid><pubDate>Fri, 09 Oct 2026 00:00:00 +0000</pubDate><atom:updated>2026-10-09T08:00:00.199+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學錦囊</category><title>2 倍角正弦公式</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/O8Et8QQhhBA&quot; width=&quot;320&quot; youtube-src-id=&quot;O8Et8QQhhBA&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div style=&quot;text-align: center;&quot;&gt;$ sin\,&amp;nbsp; 2\alpha =2\: sin \alpha \times cos \alpha$&lt;/div&gt;&lt;div&gt;&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEivdf1brBJHPhRK0xqAOp4t3KGnkjku0Wwp61k10khH2PUAlfUhoqD5QUa-1xHOgJkgzziFcaQay_gGstJLZNteUvONFuZcoETsoeqgoR5YtNpTTVINO6ZE67k0A-uwAEhMaW0CoEh87nUm9ZrqVqjODIkIsaKejPypa7jSZvoOxZXdkn2DhzsNan5KdhHb/s426/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-09-03%20142640.png&quot; imageanchor=&quot;1&quot; style=&quot;clear: left; float: left; margin-bottom: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;293&quot; data-original-width=&quot;426&quot; height=&quot;220&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEivdf1brBJHPhRK0xqAOp4t3KGnkjku0Wwp61k10khH2PUAlfUhoqD5QUa-1xHOgJkgzziFcaQay_gGstJLZNteUvONFuZcoETsoeqgoR5YtNpTTVINO6ZE67k0A-uwAEhMaW0CoEh87nUm9ZrqVqjODIkIsaKejPypa7jSZvoOxZXdkn2DhzsNan5KdhHb/s320/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-09-03%20142640.png&quot; width=&quot;320&quot; /&gt;&lt;/a&gt;&lt;/div&gt;上面的公式是利用三角形面積公式求得。&lt;br /&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/10/2.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/O8Et8QQhhBA/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-6906715504872992074</guid><pubDate>Mon, 05 Oct 2026 00:00:00 +0000</pubDate><atom:updated>2026-10-05T08:00:00.121+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">科學知識</category><title>沙漏的重量變化</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/vEhQ5RqJMq8&quot; width=&quot;320&quot; youtube-src-id=&quot;vEhQ5RqJMq8&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;br /&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEip6UDA36pHskSWTYDETyYF9Bro7_SZ0xs_EgfnS_AfnlhGKBPR43AHxk3gNvZVDq3UH6XJ_fzMwLb681lqOX5EWJsd0OPP24IdK-CXt70bIx2wfQTfKe5gwouIKcnMqxJPxKVcuc1_lXY0vKSXJ3zVoEl_7vIogVdel1rSYCE6tgVBbM1obc3gyEi8rnoE/s443/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-09-02%20141652.png&quot; imageanchor=&quot;1&quot; style=&quot;clear: left; float: left; margin-bottom: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;314&quot; data-original-width=&quot;443&quot; height=&quot;227&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEip6UDA36pHskSWTYDETyYF9Bro7_SZ0xs_EgfnS_AfnlhGKBPR43AHxk3gNvZVDq3UH6XJ_fzMwLb681lqOX5EWJsd0OPP24IdK-CXt70bIx2wfQTfKe5gwouIKcnMqxJPxKVcuc1_lXY0vKSXJ3zVoEl_7vIogVdel1rSYCE6tgVBbM1obc3gyEi8rnoE/s320/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-09-02%20141652.png&quot; width=&quot;320&quot; /&gt;&lt;/a&gt;&lt;/div&gt;沙漏重量一直在變，這值得紀錄。&lt;br /&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/10/blog-post.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/vEhQ5RqJMq8/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-6748613899033081672</guid><pubDate>Thu, 01 Oct 2026 00:00:00 +0000</pubDate><atom:updated>2026-10-01T08:00:00.118+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學考題</category><title>訓練數學感 446 ─ 已知三角周長求面積</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhe1ITiCfOgETO42YBIjVNtkKxZHQEhiiT_yYmEl0lMo7p5EYJLmecgxIOL0l8ZFKz6BV-P36-IOPJiIDmFETx0s9Uc2JjCImxMFjKdEgZ0SM_XnVvTxkaok253sK1PCaYeUAEQdzYhqOVwHAoTqNj0w7cJynambD0zuSO2yG0h8sAJ9HwiZ1DfbQk5T6xk/s215/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-09-01%20143232.png&quot; imageanchor=&quot;1&quot; style=&quot;clear: left; float: left; margin-bottom: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;177&quot; data-original-width=&quot;215&quot; height=&quot;177&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhe1ITiCfOgETO42YBIjVNtkKxZHQEhiiT_yYmEl0lMo7p5EYJLmecgxIOL0l8ZFKz6BV-P36-IOPJiIDmFETx0s9Uc2JjCImxMFjKdEgZ0SM_XnVvTxkaok253sK1PCaYeUAEQdzYhqOVwHAoTqNj0w7cJynambD0zuSO2yG0h8sAJ9HwiZ1DfbQk5T6xk/s1600/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-09-01%20143232.png&quot; width=&quot;215&quot; /&gt;&lt;/a&gt;&lt;/div&gt;直角三角形周長為 24，求面積。&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;難度&amp;nbsp;&lt;span style=&quot;font-size: 16px; white-space: pre-wrap;&quot;&gt;✩&lt;/span&gt;&lt;br /&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;這題沒學過畢氏定理的小學生也可以解，只是要想出解題技巧不太簡單。&lt;/div&gt;&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/10/446.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhe1ITiCfOgETO42YBIjVNtkKxZHQEhiiT_yYmEl0lMo7p5EYJLmecgxIOL0l8ZFKz6BV-P36-IOPJiIDmFETx0s9Uc2JjCImxMFjKdEgZ0SM_XnVvTxkaok253sK1PCaYeUAEQdzYhqOVwHAoTqNj0w7cJynambD0zuSO2yG0h8sAJ9HwiZ1DfbQk5T6xk/s72-c/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-09-01%20143232.png" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-4462519567716910971</guid><pubDate>Sun, 27 Sep 2026 00:00:00 +0000</pubDate><atom:updated>2026-09-27T08:00:00.174+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">科學知識</category><title>萬能電插排</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/EL5AJgdFAQc&quot; width=&quot;320&quot; youtube-src-id=&quot;EL5AJgdFAQc&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;電插排是好東西，但是萬用的電插排就不是好東西，主要為了多種插頭可用，會導致接觸不良，久用後會容易發熱有安全疑慮。&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;br /&gt;</description><link>http://4rdp.blogspot.com/2026/09/blog-post_27.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/EL5AJgdFAQc/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-1472811481114035928</guid><pubDate>Wed, 23 Sep 2026 00:00:00 +0000</pubDate><atom:updated>2026-09-23T08:00:00.125+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學錦囊</category><title>根號相減比大小</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/JgbFvbECyII&quot; width=&quot;320&quot; youtube-src-id=&quot;JgbFvbECyII&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;br /&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;作圖馬上直觀理解，好方法。&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/09/blog-post_19.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/JgbFvbECyII/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-5229426762678888262</guid><pubDate>Sat, 19 Sep 2026 00:00:00 +0000</pubDate><atom:updated>2026-09-19T08:00:00.119+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學考題</category><title>訓練數學感 445 ─ 線段比</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAf4PYOdJ7WTslJBTd7e628PMHDWUnuakOKy32LKOd9ASxyoFPvkkVhkEZfAV7T1eM7rUtf2ukEkonY1gkmtLxXuGA3MYFE1CZyd3m_5FZeZ3kgCVIQAxJUVrMW-M573X9Q58wyYQZvPFZBGKsELj33vPuZ9u-OL8OEmrrf99IcnUkqpBflJwfD1EUSG9z/s720/781137466_4468533270140934_4598475005523987031_n.jpg&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;501&quot; data-original-width=&quot;720&quot; height=&quot;446&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAf4PYOdJ7WTslJBTd7e628PMHDWUnuakOKy32LKOd9ASxyoFPvkkVhkEZfAV7T1eM7rUtf2ukEkonY1gkmtLxXuGA3MYFE1CZyd3m_5FZeZ3kgCVIQAxJUVrMW-M573X9Q58wyYQZvPFZBGKsELj33vPuZ9u-OL8OEmrrf99IcnUkqpBflJwfD1EUSG9z/w640-h446/781137466_4468533270140934_4598475005523987031_n.jpg&quot; width=&quot;640&quot; /&gt;&lt;/a&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;難度&amp;nbsp;&lt;span style=&quot;font-size: 16px; white-space: pre-wrap;&quot;&gt;✩&lt;/span&gt;&lt;span style=&quot;font-size: 16px; white-space: pre-wrap;&quot;&gt;✩&lt;/span&gt;&lt;span style=&quot;font-size: 16px; white-space: pre-wrap;&quot;&gt;✩&lt;/span&gt;&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;這題在 FB 看到，有多種解題知法。&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;br /&gt;</description><link>http://4rdp.blogspot.com/2026/09/445.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAf4PYOdJ7WTslJBTd7e628PMHDWUnuakOKy32LKOd9ASxyoFPvkkVhkEZfAV7T1eM7rUtf2ukEkonY1gkmtLxXuGA3MYFE1CZyd3m_5FZeZ3kgCVIQAxJUVrMW-M573X9Q58wyYQZvPFZBGKsELj33vPuZ9u-OL8OEmrrf99IcnUkqpBflJwfD1EUSG9z/s72-w640-h446-c/781137466_4468533270140934_4598475005523987031_n.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-2822957040198264308</guid><pubDate>Tue, 15 Sep 2026 00:00:00 +0000</pubDate><atom:updated>2026-09-15T08:00:00.116+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">桌遊好玩</category><title>質數迷宮</title><description>&lt;iframe height=&quot;600&quot; src=&quot;https://ejsoon.vip/wp-content/uploads/2026/07/ejprimemaze7.html&quot; style=&quot;border: none;&quot; width=&quot;100%&quot;&gt;&lt;/iframe&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;&lt;div&gt;從 1 開始到 49，依序把數字填入相鄰格子中，深色方塊是質數。&lt;/div&gt;&lt;div&gt;填錯想退回，就重按該數字即可。&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;這是 ejsoon 設計的程式，網址在&amp;nbsp;&lt;a href=&quot;https://ejsoon.vip/wp-content/uploads/2026/07/ejprimemaze7.html&quot; target=&quot;_blank&quot;&gt;https://ejsoon.vip/wp-content/uploads/2026/07/ejprimemaze7.html&lt;/a&gt;&lt;/div&gt;&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/09/blog-post_15.html</link><author>noreply@blogger.com (Bridan)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-4045959983121151603</guid><pubDate>Fri, 11 Sep 2026 00:00:00 +0000</pubDate><atom:updated>2026-09-11T08:00:00.119+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">其它機器人</category><category domain="http://www.blogger.com/atom/ns#">程式設計</category><category domain="http://www.blogger.com/atom/ns#">電機電子</category><title>機械鼠走迷宮</title><description>&lt;iframe allow=&quot;autoplay; clipboard-write; encrypted-media; picture-in-picture; web-share&quot; allowfullscreen=&quot;true&quot; frameborder=&quot;0&quot; height=&quot;314&quot; scrolling=&quot;no&quot; src=&quot;https://www.facebook.com/plugins/video.php?height=314&amp;amp;href=https%3A%2F%2Fwww.facebook.com%2Freel%2F4048043925487959%2F&amp;amp;show_text=false&amp;amp;width=560&amp;amp;t=0&quot; style=&quot;border: none; overflow: hidden;&quot; width=&quot;560&quot;&gt;&lt;/iframe&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div&gt;機械鼠走迷宮涉及多項設計工藝，要又快又準，軟硬搭配非常重要，&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;以下是影片中提到的搜尋演算法：&lt;/div&gt;&lt;div&gt;廣度優先搜尋 (BFS)&lt;/div&gt;&lt;div&gt;深度優先搜尋&lt;/div&gt;&lt;div&gt;洪水填充法&lt;/div&gt;&lt;div&gt;A*搜索&lt;/div&gt;&lt;div&gt;橡皮筋拉直&lt;/div&gt;&lt;div&gt;閃電路徑&lt;/div&gt;&lt;div&gt;黏菌&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/09/blog-post_11.html</link><author>noreply@blogger.com (Bridan)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-1040386924674809083</guid><pubDate>Mon, 07 Sep 2026 00:00:00 +0000</pubDate><atom:updated>2026-09-07T08:00:00.120+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學考題</category><title>訓練數學感 444 ─ 均衡四方體數值</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhzMMzYVKUqFBI47vnUsbwVNOAVm5n5nAp-ZcuFEl3OlH1yFWESyn5ldD2hlwdvfwbT8JfKM1uLOoXJmBszOur6LDrjuNhcFT6hcPrAk7tGY6DdTQT1Xgi3WVNDTKTGajPpOtwLt-42jnlQ5AhI6WJyVhW_Ab_xCqLWuUn4u0TdhJurGBbBZaL6Gihv8Rvy/s212/752107486_27840459752217317_5014400787639068502_n.jpg&quot; imageanchor=&quot;1&quot; style=&quot;clear: left; float: left; margin-bottom: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;196&quot; data-original-width=&quot;212&quot; height=&quot;196&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhzMMzYVKUqFBI47vnUsbwVNOAVm5n5nAp-ZcuFEl3OlH1yFWESyn5ldD2hlwdvfwbT8JfKM1uLOoXJmBszOur6LDrjuNhcFT6hcPrAk7tGY6DdTQT1Xgi3WVNDTKTGajPpOtwLt-42jnlQ5AhI6WJyVhW_Ab_xCqLWuUn4u0TdhJurGBbBZaL6Gihv8Rvy/s1600/752107486_27840459752217317_5014400787639068502_n.jpg&quot; width=&quot;212&quot; /&gt;&lt;/a&gt;&lt;/div&gt;請從數字 1、2、3、4、5、6、7、8、9 中挑出 8 個數，分別填在正方體的 8 個頂點上，使得每個面上 4 個頂點之數的和等於 18，請問沒被選中的數為何？&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;難度&amp;nbsp;&lt;span style=&quot;font-family: Arial, sans-serif; font-size: 12pt; white-space: pre-wrap;&quot;&gt;✩&lt;/span&gt;&lt;span style=&quot;font-family: Arial, sans-serif; font-size: 12pt; white-space: pre-wrap;&quot;&gt;✩&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Arial, sans-serif; font-size: 12pt; white-space: pre-wrap;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style=&quot;font-family: Arial, sans-serif; font-size: 12pt; white-space: pre-wrap;&quot;&gt;這題在 FB 看到，不會太困難，或許小學高年級可解。&lt;/span&gt;&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/09/444.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhzMMzYVKUqFBI47vnUsbwVNOAVm5n5nAp-ZcuFEl3OlH1yFWESyn5ldD2hlwdvfwbT8JfKM1uLOoXJmBszOur6LDrjuNhcFT6hcPrAk7tGY6DdTQT1Xgi3WVNDTKTGajPpOtwLt-42jnlQ5AhI6WJyVhW_Ab_xCqLWuUn4u0TdhJurGBbBZaL6Gihv8Rvy/s72-c/752107486_27840459752217317_5014400787639068502_n.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-5121701249035407314</guid><pubDate>Thu, 03 Sep 2026 00:00:00 +0000</pubDate><atom:updated>2026-09-03T08:00:00.118+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學錦囊</category><title>三角形變正方形</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/FWhwD1PCvek&quot; width=&quot;320&quot; youtube-src-id=&quot;FWhwD1PCvek&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;影片精華&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;任意多邊形可以切成三角形，然後再組成矩形，最後再變成正方形。&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;鍊條法需要運用條帶找切割點。&lt;/div&gt;&lt;br /&gt;</description><link>http://4rdp.blogspot.com/2026/09/blog-post.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/FWhwD1PCvek/default.jpg" height="72" width="72"/><thr:total>2</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-1456940516839429259</guid><pubDate>Sun, 30 Aug 2026 00:00:00 +0000</pubDate><atom:updated>2026-08-30T08:00:00.119+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">科學知識</category><title>世界最大的油輪 TI Europe</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/yzDyuR8shWU&quot; width=&quot;320&quot; youtube-src-id=&quot;yzDyuR8shWU&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;空前絕後的大油輪&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;看到這部影片讓我想起自己的碩士論文 ─ &lt;a href=&quot;https://4rdp.blogspot.com/2013/08/kalman-filter.html?m=0&quot; target=&quot;_blank&quot;&gt;安運輪油輪從航行軌跡估測船舶運動參數&lt;/a&gt;。&lt;/div&gt;&lt;br /&gt;</description><link>http://4rdp.blogspot.com/2026/08/ti-europe.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/yzDyuR8shWU/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-6963247699895181996</guid><pubDate>Wed, 26 Aug 2026 00:00:00 +0000</pubDate><atom:updated>2026-08-26T08:00:00.118+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學考題</category><category domain="http://www.blogger.com/atom/ns#">數學錦囊</category><title>訓練數學感 443 ─ 速解完全平方數</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-ss0gP6BeakIsvBh-fPAMG2sgOw6bk40II_ALz8AoIIaoFEDvK5dkvG5w9XFSA7Oxa47zDTXQ5dp4orfRoUlyFw4OGIf5P1UxRtYbLy08wMywkBVVaHkf1e2qPPGRbPNuBqr58-QkkGts1q1NWMtQEUtWobqhcoVCKAa5P5OP7oUUYAZBZx79BvSapC5g/s1401/719135576_28209025932019888_7159039507377245432_n.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;1401&quot; data-original-width=&quot;1123&quot; height=&quot;640&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-ss0gP6BeakIsvBh-fPAMG2sgOw6bk40II_ALz8AoIIaoFEDvK5dkvG5w9XFSA7Oxa47zDTXQ5dp4orfRoUlyFw4OGIf5P1UxRtYbLy08wMywkBVVaHkf1e2qPPGRbPNuBqr58-QkkGts1q1NWMtQEUtWobqhcoVCKAa5P5OP7oUUYAZBZx79BvSapC5g/w514-h640/719135576_28209025932019888_7159039507377245432_n.jpg&quot; width=&quot;514&quot; /&gt;&lt;/a&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;上圖列出四種計算完全平方數方法，但是隱藏多個錯誤在其中，把這個當作除錯題來看。&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;難度&amp;nbsp;&lt;span style=&quot;font-size: 16px;&quot;&gt;✩&lt;/span&gt;&lt;span style=&quot;font-size: 16px;&quot;&gt;✩&lt;/span&gt;&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;br /&gt;&lt;/div&gt;雖然難度設定兩顆星，小學生應該也可以找到錯誤所在。這裡也列出四位知名數學家，不過這些方法是他們想出來的，這我抱持懷疑的態度。</description><link>http://4rdp.blogspot.com/2026/08/443.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-ss0gP6BeakIsvBh-fPAMG2sgOw6bk40II_ALz8AoIIaoFEDvK5dkvG5w9XFSA7Oxa47zDTXQ5dp4orfRoUlyFw4OGIf5P1UxRtYbLy08wMywkBVVaHkf1e2qPPGRbPNuBqr58-QkkGts1q1NWMtQEUtWobqhcoVCKAa5P5OP7oUUYAZBZx79BvSapC5g/s72-w514-h640-c/719135576_28209025932019888_7159039507377245432_n.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-2390992690149946694</guid><pubDate>Sat, 22 Aug 2026 00:00:00 +0000</pubDate><atom:updated>2026-08-22T08:00:00.119+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學錦囊</category><title>球體體積</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/H4c0JXVWVgA&quot; width=&quot;320&quot; youtube-src-id=&quot;H4c0JXVWVgA&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;數學有趣的地方就是在解題的思維，原來&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;球體體積 = 圓柱體 - 2 個小錐體&lt;/div&gt;&lt;br /&gt;</description><link>http://4rdp.blogspot.com/2026/08/blog-post_22.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/H4c0JXVWVgA/default.jpg" height="72" width="72"/><thr:total>2</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-7843687812771940920</guid><pubDate>Tue, 18 Aug 2026 00:00:00 +0000</pubDate><atom:updated>2026-08-18T08:00:00.121+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">商品評論</category><category domain="http://www.blogger.com/atom/ns#">英語學習</category><category domain="http://www.blogger.com/atom/ns#">行動裝置</category><title>Gemini Live of Google</title><description>&lt;div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-p_vSKx4FUfRrVEbl_P46kGR1Tj5U8gLdP5Bdgx2OEsnXmr-ZC68OulBHAfadnWRN2VHYHmVByNRYx6WQmiVPgfOb5gZzdymNNYFHqy_im_Xt_T3PDK-EvlyUFpwR4h-Aza0t91wRwnOFJz1Sa9eT2-tYIWVOqA8fBNsMH5-X5G_-lAty7nV_ETAeqLq3/s160/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-06-13%20102556.png&quot; style=&quot;clear: left; float: left; margin-bottom: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;50&quot; data-original-width=&quot;160&quot; height=&quot;125&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-p_vSKx4FUfRrVEbl_P46kGR1Tj5U8gLdP5Bdgx2OEsnXmr-ZC68OulBHAfadnWRN2VHYHmVByNRYx6WQmiVPgfOb5gZzdymNNYFHqy_im_Xt_T3PDK-EvlyUFpwR4h-Aza0t91wRwnOFJz1Sa9eT2-tYIWVOqA8fBNsMH5-X5G_-lAty7nV_ETAeqLq3/w400-h125/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-06-13%20102556.png&quot; width=&quot;400&quot; /&gt;&lt;/a&gt;&lt;/div&gt;學外文最缺的就是可以口說對話練習的人，普通人沒錢不可能聘請到專業的老師，就算有錢可以聘到老師，也不是隨時隨處馬上就可以講話。&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;慶幸 2026 科技已經非常進步，現在所有人都可以非常容易使用 Google 獲取協助來滿足上面的需求，因為&amp;nbsp; Gemini Live 對話幾乎跟真人無異，你可以和它像朋友一樣東聊西扯，不只中文任何外語也可以對話，對話內容上通天文下至地理無所不包，不過內容的正確性需要自己核實過，不能盡信，我以自己設計過的橋牌簡明制為例和它聊天，竟然會給出錯誤的答案，因為它混入精準制規則，混淆兩者差異而胡說八道，還好糾正之後，它自己會上網搜尋更正。&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9fUg00WHhmKPWKCUIEBXkojKFY8OEgaP9Sn_6Hi2yZMOTKlEwYQyUi5bYT1owO0ioQKZmWtW6OuAnrj_2sHPbiQmtn_QsfiHsIGaKcMVuDMIbbaEZr9dmCxCU4AocGE21hghgepqz56p80ZHI8YAx5k2ke0cwGrLCEokuYejfG1a1QDSes7ShUBVtmkRW/s32/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-06-13%20103203.png&quot; style=&quot;clear: left; float: left; margin-bottom: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;31&quot; data-original-width=&quot;32&quot; height=&quot;194&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9fUg00WHhmKPWKCUIEBXkojKFY8OEgaP9Sn_6Hi2yZMOTKlEwYQyUi5bYT1owO0ioQKZmWtW6OuAnrj_2sHPbiQmtn_QsfiHsIGaKcMVuDMIbbaEZr9dmCxCU4AocGE21hghgepqz56p80ZHI8YAx5k2ke0cwGrLCEokuYejfG1a1QDSes7ShUBVtmkRW/w200-h194/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-06-13%20103203.png&quot; width=&quot;200&quot; /&gt;&lt;/a&gt;&lt;/div&gt;&lt;div&gt;使用方法，電腦上開啟 Google Chrome，啟動右上角 Gemini 後，對話框右下角像「川」字的圖塊就是 Live，無聊時是一個很好的聊伴，如果是手機就下載安裝 Gemini APP。&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;上個月推薦 Epop APP 輔助詞彙學習，而這個 Gemini Live 訓練口語超好用，特別是我出差開車時，可以免費跟他聊天學英文，不但解決無聊，又能學東西超棒。&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/07/gemini-live-of-google.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-p_vSKx4FUfRrVEbl_P46kGR1Tj5U8gLdP5Bdgx2OEsnXmr-ZC68OulBHAfadnWRN2VHYHmVByNRYx6WQmiVPgfOb5gZzdymNNYFHqy_im_Xt_T3PDK-EvlyUFpwR4h-Aza0t91wRwnOFJz1Sa9eT2-tYIWVOqA8fBNsMH5-X5G_-lAty7nV_ETAeqLq3/s72-w400-h125-c/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-06-13%20102556.png" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-5874237982105846806</guid><pubDate>Fri, 14 Aug 2026 00:00:00 +0000</pubDate><atom:updated>2026-08-14T08:00:00.120+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學考題</category><title>訓練數學感 442 ─ 求∆面積</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKHrb_gwBtC_oYtlscBtNe-6soZ3D6llYi9ePJfBAko2SsmkQyjyM35Pm8-YY2lIBFomnWCzreYmWxeETNKks4_hEwfZ-15rsa7AZnc53Jr70cpKiNyU9Lk5y9wsepmZOFlMBzepmXNPYbOEEkayQx-_ToF8UTsnrfYwfVG5hcsGMWnpxkiut8leQj657D/s716/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-07-08%20140651.png&quot; style=&quot;clear: left; float: left; margin-bottom: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;716&quot; data-original-width=&quot;364&quot; height=&quot;320&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKHrb_gwBtC_oYtlscBtNe-6soZ3D6llYi9ePJfBAko2SsmkQyjyM35Pm8-YY2lIBFomnWCzreYmWxeETNKks4_hEwfZ-15rsa7AZnc53Jr70cpKiNyU9Lk5y9wsepmZOFlMBzepmXNPYbOEEkayQx-_ToF8UTsnrfYwfVG5hcsGMWnpxkiut8leQj657D/s320/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-07-08%20140651.png&quot; width=&quot;163&quot; /&gt;&lt;/a&gt;&lt;/div&gt;如左圖所示，兩底角 75&lt;span id=&quot;docs-internal-guid-be8a796f-7fff-1b61-e8c6-019331204f1c&quot;&gt;&lt;span face=&quot;Arial, sans-serif&quot; style=&quot;font-size: 12pt; font-variant: normal; vertical-align: baseline; white-space: pre-wrap;&quot;&gt;°&lt;/span&gt;&lt;/span&gt;&amp;nbsp;等腰三角形，底長 6，求此三角形面積。&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;難度&amp;nbsp;&lt;span face=&quot;Arial, sans-serif&quot; style=&quot;font-size: 12pt; white-space: pre-wrap;&quot;&gt;✩&lt;/span&gt;&lt;span face=&quot;Arial, sans-serif&quot; style=&quot;font-size: 12pt; white-space: pre-wrap;&quot;&gt;✩&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span face=&quot;Arial, sans-serif&quot; style=&quot;font-size: 12pt; white-space: pre-wrap;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span face=&quot;Arial, sans-serif&quot; style=&quot;font-size: 12pt; white-space: pre-wrap;&quot;&gt;使用三角函數當然很快解出，不過這裡希望用國中生能解的方法。&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span face=&quot;Arial, sans-serif&quot; style=&quot;font-size: 12pt; white-space: pre-wrap;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/08/442.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKHrb_gwBtC_oYtlscBtNe-6soZ3D6llYi9ePJfBAko2SsmkQyjyM35Pm8-YY2lIBFomnWCzreYmWxeETNKks4_hEwfZ-15rsa7AZnc53Jr70cpKiNyU9Lk5y9wsepmZOFlMBzepmXNPYbOEEkayQx-_ToF8UTsnrfYwfVG5hcsGMWnpxkiut8leQj657D/s72-c/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-07-08%20140651.png" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-1892222246536779974</guid><pubDate>Mon, 10 Aug 2026 00:00:00 +0000</pubDate><atom:updated>2026-08-10T08:00:00.224+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學錦囊</category><title>方塊碰撞計算圓周率</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/P0e-lMvgC70&quot; width=&quot;320&quot; youtube-src-id=&quot;P0e-lMvgC70&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;br /&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div&gt;很難想像有人會注意到方塊碰撞和圓周率有關。&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/08/blog-post.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/P0e-lMvgC70/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-6294808772536110404</guid><pubDate>Thu, 06 Aug 2026 00:00:00 +0000</pubDate><atom:updated>2026-08-06T08:00:00.231+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學考題</category><title>訓練數學感 441 ─ 求 a+b</title><description>已知正整數 $a, b$ 滿足 $a+b+ab = 62$，求 $a+b = ?$&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;難度&amp;nbsp;&lt;span style=&quot;font-family: &amp;quot;Trebuchet MS&amp;quot;, Trebuchet, Verdana, sans-serif; font-size: 16px;&quot;&gt;✩&lt;/span&gt;&lt;span style=&quot;font-family: &amp;quot;Trebuchet MS&amp;quot;, Trebuchet, Verdana, sans-serif; font-size: 16px;&quot;&gt;✩&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-family: &amp;quot;Trebuchet MS&amp;quot;, Trebuchet, Verdana, sans-serif; font-size: 16px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style=&quot;font-family: &amp;quot;Trebuchet MS&amp;quot;, Trebuchet, Verdana, sans-serif; font-size: 16px;&quot;&gt;國中程度可解，如果 $a, b$ 不是正整數，那麼會有無限多組解。&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/08/441-ab.html</link><author>noreply@blogger.com (Bridan)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-6421823359165875169</guid><pubDate>Sun, 02 Aug 2026 00:00:00 +0000</pubDate><atom:updated>2026-08-02T08:00:00.116+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">雜七雜八</category><title>不支持倒閣，但支持立法院凍結應該下台官員的薪資</title><description>&lt;div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwMG8M33cKMNZSfiSIB8EMxUvvYeB04K7pgmuoz98rBmNusfey0wqGDs_x_CHB-TOPlCmkKmefbBaTGF66Ibjt1KIlQPpl-Dx3cV9rsxnZsKbQxYmawJ8zgimkn3PEYtCQE_MpQvUBpEO77rsGFBrBQDIGigR2l_x6E07K-xZEjavAzc8PJCeLoREMgLBC/s1348/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-07-29%20103622.png&quot; style=&quot;clear: left; float: left; margin-bottom: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;806&quot; data-original-width=&quot;1348&quot; height=&quot;382&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwMG8M33cKMNZSfiSIB8EMxUvvYeB04K7pgmuoz98rBmNusfey0wqGDs_x_CHB-TOPlCmkKmefbBaTGF66Ibjt1KIlQPpl-Dx3cV9rsxnZsKbQxYmawJ8zgimkn3PEYtCQE_MpQvUBpEO77rsGFBrBQDIGigR2l_x6E07K-xZEjavAzc8PJCeLoREMgLBC/w640-h382/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-07-29%20103622.png&quot; width=&quot;640&quot; /&gt;&lt;/a&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;&lt;/div&gt;&lt;/div&gt;&lt;div&gt;最近因為中聯油脂毒油事件，引爆國人對政府處理政務極度不滿的態度，因此才會有 7/25 上凱道反毒活動。&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;其實賴清德政府與卓榮泰行政團隊的施政能力令人很不滿意，像是立法院通過的法律可以不公告、不副署、不執行，這根本是在破壞法治根基。&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;自 2024 年起大法官釋憲將國會改革法案打回原形起，就令人非常失望，因為民進黨已經全面掌控行政、司法、監察、考試四院，除了國會席次沒過半，就搞起大罷免，企圖掌控立法院。由於民進黨幾乎掌控所有行政資源，缺乏政治權力的制衡和監督，導致現在的中央政府怠惰或是行政不中立，像是大法官、NCC 委員、檢察總長提名也不盡速補齊，這是行政方面的怠忽職守，監察院以及司法辦案不公，辦藍白不辦綠雙標至極。&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;政府單位共諜案輕放。&lt;/div&gt;&lt;div&gt;國防採購可由不具資格廠商承包。&lt;/div&gt;&lt;div&gt;&lt;div&gt;放任鏡新聞等綠媒製造政治新聞，柯文哲京華城案可以偵查大公開。&lt;/div&gt;&lt;div&gt;僑委會、陸委會的離譜出國報告。&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;/div&gt;&lt;div&gt;民生議題也讓人不省心，&lt;/div&gt;&lt;div&gt;食品令人不安心，這陣子有放寬進口蘋果農藥標準、發芽馬鈴薯等事件。&lt;/div&gt;&lt;div&gt;社會住宅政見跳票，拿不出興建社宅實際政績，搞新青安貸款卻讓房價飆升更厲害。&lt;/div&gt;&lt;div&gt;三班護病比、警消加薪，執政黨不是阻擋就是拖延。&lt;/div&gt;&lt;div&gt;兒少未來帳戶、生育補助法案綠委投反對票。&lt;/div&gt;&lt;div&gt;大量行政工作及校事會議問題，教育部把老師逼到防禦性教學，不敢管教學生。&lt;/div&gt;&lt;div&gt;三立集團 100% 持股的創世智能公司，涉及王牌交易所詐騙洗錢案，在2019~2022年期間，仍靠著王牌交易所持續取得經濟部近1200萬的補助。&lt;/div&gt;&lt;div&gt;&lt;div&gt;文化部補助浮濫，不雅歪歌也可以獲得 70 萬補助。&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;/div&gt;&lt;div&gt;卓榮泰在松指部包機去日本看球賽。&lt;/div&gt;&lt;div&gt;另外，因為 AI 算力需求、美伊戰爭等因素，民進黨不得不從以前反核到現在返核政策大轉變，政府缺乏能源政策遠見，讓台灣經濟發展內耗十幾年。&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;民進黨荒誕事蹟數不勝數，&lt;/div&gt;&lt;div&gt;不支持倒閣，因為倒閣後，國會全面改選社會成本太高，況且換不掉賴清德總統，沒有意義，&lt;/div&gt;&lt;div&gt;但支持立法院凍結應該下台官員的薪資，不能讓那些應該負政治責任的官員繼續霸佔官位，應該讓有能力做事的人上台。&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;這個想法，我在 7/27&amp;nbsp;&lt;a href=&quot;https://www.youtube.com/watch?v=PVGN_8nkWzE&quot; target=&quot;_blank&quot;&gt;《POP大國民》YouTube 留言&lt;/a&gt;提出。&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/08/blog-post_02.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwMG8M33cKMNZSfiSIB8EMxUvvYeB04K7pgmuoz98rBmNusfey0wqGDs_x_CHB-TOPlCmkKmefbBaTGF66Ibjt1KIlQPpl-Dx3cV9rsxnZsKbQxYmawJ8zgimkn3PEYtCQE_MpQvUBpEO77rsGFBrBQDIGigR2l_x6E07K-xZEjavAzc8PJCeLoREMgLBC/s72-w640-h382-c/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%202026-07-29%20103622.png" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-8205431523332925095</guid><pubDate>Wed, 29 Jul 2026 00:00:00 +0000</pubDate><atom:updated>2026-07-29T08:00:00.116+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">數學錦囊</category><title>皮克定理 (Pick&#39;s theorem)</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/eaCUUILq8uU&quot; width=&quot;320&quot; youtube-src-id=&quot;eaCUUILq8uU&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;任意多邊形面積 = 邊界點 / 2 + 內部點 - 1&lt;/div&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;br /&gt;&lt;/div&gt;&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: left;&quot;&gt;看完&lt;a href=&quot;https://zh.wikipedia.org/wiki/%E7%9A%AE%E5%85%8B%E5%AE%9A%E7%90%86&quot; target=&quot;_blank&quot;&gt;皮克定理&lt;/a&gt;影片說明，讓我想起 &lt;a href=&quot;https://4rdp.blogspot.com/2018/12/4rdp.html?m=0&quot; target=&quot;_blank&quot;&gt;4rdp 益智拼圖的節點公式&lt;/a&gt;。&lt;/div&gt;&lt;br /&gt;</description><link>http://4rdp.blogspot.com/2026/07/picks-theorem.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/eaCUUILq8uU/default.jpg" height="72" width="72"/><thr:total>2</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-3550204829234352390.post-3061845869987063505</guid><pubDate>Sat, 25 Jul 2026 00:00:00 +0000</pubDate><atom:updated>2026-07-25T08:00:00.124+08:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">雜七雜八</category><title>股價</title><description>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;&lt;iframe allowfullscreen=&quot;&quot; class=&quot;BLOG_video_class&quot; height=&quot;266&quot; src=&quot;https://www.youtube.com/embed/aOZuFdbB-KI&quot; width=&quot;320&quot; youtube-src-id=&quot;aOZuFdbB-KI&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;&lt;br /&gt;&lt;span&gt;&lt;a name=&#39;more&#39;&gt;&lt;/a&gt;&lt;/span&gt;&lt;div&gt;股票的訂價規則以前一直無法全然理解，看完這部影片後，可以認知到 &lt;span style=&quot;background-color: #fcff01;&quot;&gt;股價&amp;nbsp;&lt;span id=&quot;docs-internal-guid-6551d529-7fff-2d4d-91d5-3f7714f843ec&quot;&gt;&lt;span face=&quot;Arial, sans-serif&quot; style=&quot;font-size: 10pt; font-variant: normal; vertical-align: baseline; white-space: pre-wrap;&quot;&gt;≠&lt;/span&gt;&lt;/span&gt;&amp;nbsp;股票價值&lt;/span&gt;，並且股價會隨人心、市場情緒隨時波動，股價經常出乎意料變動，這就為什麼沒有人可以 100% 確保每次精準抓到最佳買賣點，就算你智商 180 也無法預料它。&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;多年來，個人學到的短線操作經驗，&lt;span style=&quot;background-color: #fcff01;&quot;&gt;在股價&amp;nbsp;(五日線) 下降週期，連跌兩日或有大跌幅時，可以買入，但是出現上漲時，就應該立即賣出脫手&lt;/span&gt;。&lt;span style=&quot;background-color: #fcff01;&quot;&gt;在低點可以開始少量測試築底，等確立上升週期後，就可以加大投資&lt;/span&gt;。&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;這樣的投資策略說來簡單，但是施行要克服自己的心魔，嚴守投資紀律，這樣才不會衝動做出讓自己後悔的事情，最後祝大家都能早日財富自由。&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;延伸閱讀&lt;/div&gt;&lt;div&gt;&lt;a href=&quot;https://www.youtube.com/watch?v=2QDrXNQqsk4&quot; target=&quot;_blank&quot;&gt;等 3 種下跌&lt;/a&gt;&lt;/div&gt;</description><link>http://4rdp.blogspot.com/2026/07/blog-post_21.html</link><author>noreply@blogger.com (Bridan)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/aOZuFdbB-KI/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item></channel></rss>