Google Readertag:google.com,2005:reader/user/15381948982280111671/state/com.google/broadcastCJuz3YG-l54CO. Leguay2009-11-21T10:33:46Ztag:google.com,2005:reader/item/02ef9a9e1b3b48442009-11-21T10:58:00Z2009-11-21T11:10:16Z<img src="http://idata.over-blog.com/100x100/0/31/93/70/Images-sciences-2009/Anniversaire.jpg"> À chanter sur l’air de Joyeux anniversaire… mais c’est quoi un super-anniversaire ? Il correspond à la date de votre naissance (jusque là rien de neuf) – mais aussi au jour calendaire de votre naissance : vous êtes né un dimanche, et votre anniversaire tombe un dimanche. Ça n’arrive pas tous [...]<div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=3TBlJB4Fhls:NNGBJkrtwns:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=3TBlJB4Fhls:NNGBJkrtwns:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=3TBlJB4Fhls:NNGBJkrtwns:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=3TBlJB4Fhls:NNGBJkrtwns:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/3TBlJB4Fhls" height="1" width="1"/>Alexandre Moattitag:google.com,2005:reader/feed/http://www.maths-et-physique.net/atom.phphttp://www.maths-et-physique.net/article-super-anniversaire-super-anniversaire--39763918.htmltag:google.com,2005:reader/item/49132523552d573f2009-11-20T20:33:00Z2009-11-20T21:16:08Z<div style="text-align:center"><a href="http://abstrusegoose.com/a/211.htm"><img src="http://www.inclassablesmathematiques.fr/media/02/02/1414653173.PNG" alt="i_dont_give_a_shit_about_your_mountain.PNG" style="border-width:0;margin:0.7em 0" name="media-2113483"></a></div> <p>Trouvé sur <a href="http://abstrusegoose.com/a/211.htm">Abstruse Goose</a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=Sv08h2djyZQ:ZeDV7rMV6_w:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=Sv08h2djyZQ:ZeDV7rMV6_w:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=Sv08h2djyZQ:ZeDV7rMV6_w:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=Sv08h2djyZQ:ZeDV7rMV6_w:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/Sv08h2djyZQ" height="1" width="1"/>Olivier Leguaytag:google.com,2005:reader/feed/http://beverycool.hautetfort.com/atom.xmlhttp://www.inclassablesmathematiques.fr/archive/2009/11/20/paysage-mathematique.htmltag:google.com,2005:reader/item/75138b4ebe713e9c2009-11-21T05:00:00Z2009-11-21T10:28:50Z<div style="text-align:justify"><div style="text-align:justify"><span style="font-weight:bold">Depuis l'Antiquité, nombreux sont les mathématiciens qui furent également <span style="color:rgb(255, 0, 0)">penseurs ou philosophes</span>. Parmi eux, Aristote, Platon, Pascal, Descartes etc.</span><br><br>La <a href="http://fr.wikipedia.org/wiki/Philosophie_des_math%C3%A9matiques">philosophie des maths</a> a son portail Wikipédia !<br>La philosophie des mathématiques est la branche de la philosophie qui tente de répondre aux interrogations sur les<span style="font-weight:bold"> fondements des mathématiques ainsi que sur leur usage</span>. On y croise des questions telles que : « pourquoi les mathématiques sont-elles utiles ou efficaces pour décrire la nature ? », « dans quel(s) sens, peut-on dire que les entités mathématiques existent ? » ou « pourquoi et comment peut-on dire qu'une proposition mathématique est vraie ? »<br><br><a href="http://fr.wikisource.org/wiki/Livre:La_G%C3%A9om%C3%A9trie">Accéder à la lecture </a>(en texte ou en fac-similé) du livre <span style="font-style:italic;font-weight:bold;color:rgb(0, 153, 0);font-size:130%">La Géométrie</span><span style="font-size:130%"><span style="color:rgb(0, 153, 0)"> de Descartes </span></span>; ouvrage dans lequel on trouve notamment les <span style="font-weight:bold">théorèmes de </span><a style="font-weight:bold" href="http://pagesperso-orange.fr/debart/geometrie/geom_descartes.html#thales">Thalès</a><span style="font-weight:bold"> et de </span><a style="font-weight:bold" href="http://pagesperso-orange.fr/debart/geometrie/figures_de_pappus.html#pappus">Pappus</a>, ainsi que des propriétés sur les coniques.<br></div><br><a href="http://upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Descartes_La_G%C3%A9om%C3%A9trie.djvu/page7-395px-Descartes_La_G%C3%A9om%C3%A9trie.djvu.jpg"><img style="margin:0px auto 10px;display:block;text-align:center;width:395px;height:587px" src="http://upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Descartes_La_G%C3%A9om%C3%A9trie.djvu/page7-395px-Descartes_La_G%C3%A9om%C3%A9trie.djvu.jpg" alt="" border="0"></a><br></div><div><img width="1" height="1" src="https://blogger.googleusercontent.com/tracker/7170062817138287405-7646812903548869629?l=algorythmes.blogspot.com" alt=""></div><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=p_oDDG4DG6w:cC1kN00a3PY:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=p_oDDG4DG6w:cC1kN00a3PY:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=p_oDDG4DG6w:cC1kN00a3PY:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=p_oDDG4DG6w:cC1kN00a3PY:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/p_oDDG4DG6w" height="1" width="1"/>Sonia Geffriertag:google.com,2005:reader/feed/http://algorythmes.blogspot.com/feeds/posts/defaulthttp://algorythmes.blogspot.com/2009/11/philosophie-des-maths.htmltag:google.com,2005:reader/item/62eb4feef574e4702009-11-21T08:55:09Z2009-11-21T08:55:09Z<p><img title="babage" src="http://www.infiniment.com/blog/wp-content/uploads/2009/11/babage-267x300.jpg" alt="babage" width="267" height="300">Les calculatrices sont faites pour calculer des sommes et des produits. Ces deux opérations de bases suffisent.</p> <p>Pour le calcul des exponentielles, on utilise le développement en série entière de  la fonction exponentielle. On a  pour tout <img src="http://www.infiniment.com/blog/wp-content/cache/tex_9dd4e461268c8034f5c8564e155c67a6.png" alt="x"> réel, <img src="http://www.infiniment.com/blog/wp-content/cache/tex_0e5bc0b6c77570429238ff00e8d0bdc4.png" alt="exp(x)=\sum_{n=0}^{+\infty} \frac{x^n}{n!}">.</p> <p>Évidemment, la calculatrice ne sait pas aller jusqu’à l’infini. En réalité, puisque on veut une approximation de <img src="http://www.infiniment.com/blog/wp-content/cache/tex_ff2d26be6b0b506663911208302f91b3.png" alt="e^x"> à <img src="http://www.infiniment.com/blog/wp-content/cache/tex_92e4da341fe8f4cd46192f21b6ff3aa7.png" alt="\epsilon"> près (en général <img src="http://www.infiniment.com/blog/wp-content/cache/tex_73cafea8c52fff275e3315d88dcaedc9.png" alt="\epsilon=10^{-12})">, il suffit de donner à <img src="http://www.infiniment.com/blog/wp-content/cache/tex_7b8b965ad4bca0e41ab51de7b31363a1.png" alt="n"> une valeur limite assez petite, car la vitesse dite de convergence de la série   <img src="http://www.infiniment.com/blog/wp-content/cache/tex_bf009955e61b704069324f3401d760c4.png" alt="\sum_{n=0}^{+\infty} \frac{x^n}{n!}"> vers <img src="http://www.infiniment.com/blog/wp-content/cache/tex_5e615dbe7a19c2a3c55120b4b960d37c.png" alt="exp(x)"> est très rapide du fait de la présence du <img src="http://www.infiniment.com/blog/wp-content/cache/tex_0e78dd0c70c48a61ca7caed1a92e4f92.png" alt=" n! "> au dénominateur. On peut prendre <img src="http://www.infiniment.com/blog/wp-content/cache/tex_9601748c16335f4cd6936f636a4c8951.png" alt="n=10">.</p> <p>Pour le calcul du <img src="http://www.infiniment.com/blog/wp-content/cache/tex_082b0e41ac5d0f86aa6e51587580f3b7.png" alt="\ln(x)">, c’est un peu plus compliqué pour deux raisons. On a pour tout <img src="http://www.infiniment.com/blog/wp-content/cache/tex_2297348f08fb1c8adf11be3a707e06da.png" alt="x \in ]-1;1[, \ln(x+1)=\sum_{n=0}^{+\infty} (-1)^n \frac{x^{n+1}}{n+1}">. On voit d’une part que la convergence sera moins rapide qu’avec <img src="http://www.infiniment.com/blog/wp-content/cache/tex_ff2d26be6b0b506663911208302f91b3.png" alt="e^x">, d’où la nécessité de prendre <img src="http://www.infiniment.com/blog/wp-content/cache/tex_7b8b965ad4bca0e41ab51de7b31363a1.png" alt="n"> plus grand  et d’autre part, que la formule n’est valable que pour <img src="http://www.infiniment.com/blog/wp-content/cache/tex_eb00feee9849f410d3e5034fe580a8e1.png" alt="x \in]-1;1[">. Heureusement, on sait que <img src="http://www.infiniment.com/blog/wp-content/cache/tex_f9553197f90ce8dd90386d9555142f3f.png" alt="\ln \frac{1}{x}=-\ln x">. Ainsi, si on veut <img src="http://www.infiniment.com/blog/wp-content/cache/tex_0f1d50fd14bb478046961dbf4a645642.png" alt="\ln(2)">, on écrit <img src="http://www.infiniment.com/blog/wp-content/cache/tex_91c0e61a232f947bc3a9e2ef7188ae24.png" alt="\ln\left(1-\frac{1}{2}\right)=\ln \frac{1}{2}=-\ln 2">.</p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=FXriHX-zOEs:IpBkqaqB-fk:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=FXriHX-zOEs:IpBkqaqB-fk:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=FXriHX-zOEs:IpBkqaqB-fk:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=FXriHX-zOEs:IpBkqaqB-fk:qj6IDK7rITs"><img 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Network05913884328581053856104089681352202497611818884008321769031404603607502933300923037061639444366796450413983819792229630813428765362018268203127947603101191575940643425332385287104609320443835051372286127771529789306577220377607611542991605705178067536036991643067838746873852636641095844074726342480205582860244010424673138747889361007028381676851120123431707705861674864975873092121938515844565763711513605752185979175800634549448365358706081961705114599282240615380234342718980004124677764236916235008481363253902255770235647157945640954312427931319739348128135716404189753411940770794235748674856815339701217872474366058966296200107709371268012618903362730206696653098940813053158107293116227204440671557290369886599616397708710238144934045725394280630544251760323881199742190216371607697534062656087750947251451304020619524706279996832306186079292721862678090766104367644704381623414219464074837905408529091953402160084854315893135141490598099811298824231408255663021576025720117315435665292440881550407754718418669212718557380318684159083184349466221943511104834722434456260014772668214062820020124893303881669529120710903468975745498202413522421724091880129911794099290160620148404453966973190200800311510218664708074332071451316434761063692897268051283811301661578038846568069855911947739610210714888628519490623201004436876879306304006919951127373867460264394551843777889903623508108855332780073034171945803114950989404981245399456700211832827046737602024027674245314504061615860496715079941800406764051436889622144938046996867287201283314208409555923309776139491686191852037464567002112811701364466950265268046313292460071426127077007166020539903006750649706208319093605005924094331675427105000958073311561937280784857289336950726208814922129116002261092301353394271475741723607736695053527100772920664155315711056919078500268791611099729145768337467614598705475313342476057520423460813415870562776125775228452900355526441753014996056613062863274920570420152211216884927712475340781143824379tag:google.com,2005:reader/feed/http://feeds.feedburner.com/failbloghttp://feedproxy.google.com/~r/failblog/~3/i0Dd-XlH07k/tag:google.com,2005:reader/item/ce43f4abc9cf71c92009-11-20T20:25:30Z2009-11-20T20:25:30Z<blockquote>Shared by drzoidberg <br> Webcomic mais verdadeiro da história da inter net.</blockquote> <p><img src="http://abstrusegoose.com/strips/i_dont_give_a_shit_about_your_mountain.PNG" alt="i_dont_give_a_shit_about_your_mountain" title="Oh, I&#39;m sorry. You must have me confused with someone that gives a shit about your branch of mathematics." height="531" width="744"><br> <em><a href="http://abstrusegoose.com/a/211.htm">link for this comic</a></em></p> <p>Get your math geek on and check out <a href="http://www.spikedmath.com/"><strong>this excellent webcomic</strong></a>.</p> <p><br> <a href="http://www.reddit.com/submit"> <img src="http://www.reddit.com/static/spreddit1.gif" alt="submit to reddit" border="0"> </a><a href="http://www.stumbleupon.com/submit?url=http%3A%2F%2Fabstrusegoose.com%2Fa%2F211.htm&amp;title=Landscape"> <img src="http://cdn.stumble-upon.com/images/16x16_su_3d.gif" alt="Stumble this!" border="0"></a><a href="http://www.facebook.com/share.php?u=http://abstrusegoose.com/a/211.htm"><img src="http://b.static.ak.fbcdn.net/rsrc.php/zAB5S/hash/4273uaqa.gif" alt=""></a></p> <div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=pSvbqdz91R4:uqWDRStIxhA:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=pSvbqdz91R4:uqWDRStIxhA:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=pSvbqdz91R4:uqWDRStIxhA:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=pSvbqdz91R4:uqWDRStIxhA:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/pSvbqdz91R4" height="1" width="1"/>(author unknown)Webcomic mais verdadeiro da história da inter net.drzoidbergtag:google.com,2005:reader/user/14207806560129058204/source/com.google/linkhttp://abstrusegoose.com/211tag:google.com,2005:reader/item/44de4f5433ab6b082009-11-20T05:10:00Z2009-11-20T05:10:00Z(author unknown)0949973714744262022606840282312427771458127479229637311473520140166530262979065204518812899283030468tag:google.com,2005:reader/feed/http://feeds.technologyreview.com/technology_review_blog_arxiv<p>A mathematician has discovered two entirely new arrangements of rowers in a racing eight in which the rowing forces cancel to make the boat wiggle-free.</p> <div><img src="http://www.technologyreview.com/blog/arxiv/files/34919/Eights.gif" alt=""></div> <p>They take their rowing seriously at the University of Cambridge. So seriously, in fact, that the university has press-ganged John Barrow at the Center for Mathematical Sciences to study the serious problem of oscillating non-zero transverse moment in racing boats, otherwise known as wiggle.</p> <p>The placement of the rowers, the "rig" of the boat, obviously has consequences for the motion of the boat. The question is how best to arrange an even number of crew members in a coxless racing boat in a way that minimizes or eliminates wiggle.</p> <p>The traditional way of rigging a boat places rowers alternately pulling oars on each side of the boat. "The traditional rig appears symmetrical and simple in ways that might tempt you into thinking it is in every sense optimal. However, this is not the case," says Barrow who goes on to show that the balance of forces in this rig as the oars are pulled through the water always produces a wiggle.</p> <p>But there is an arrangement in which the transverse forces cancel. This rig consists of one rower pulling on the port side of the boat followed by two on the starboard with a final rower on port. In the rowing world, this arrangement is known as the Italian rig because it was discovered by the Moto Guzzi Club team on Lake Como in 1956. The Moto Guzzi crew went on to win gold representing Italy at the Melbourne Olympic Games later that year.</p> <p>Barrow next considers a crew of eight and identifies four possible rigs that have a zero transverse moment. These are shown above. The interesting thing is that only two of these rigs are known to the racing world. Rig b is called the "bucket," or "Ratzeburg rig," first used by crews training at the famous German rowing club of the same name in the late 1950s. <br></p> <p>Rig c is simply the Italian rig repeated twice. It was used by the Italian Eights in the 1950s after their success with the Fours. It's also known as the triple tandem rig. </p> <p>The other two, rigs a and d, are brand spanking new and don't seem to have ever been discussed. However, rig d is a combination of a zero-moment Italian Four with its mirror image.</p> <p>Barrow goes on to generalize the idea for any number of crew, proving along the way that only crew numbers divisible by four can be wiggle-free. (Assuming that they are evenly spaced.) <br></p> <p>He also goes on to show that unbalanced boats in which there are unequal numbers of oars on each side, can also be wiggle free if the spacing between the rowers can be altered. As an example, he shows how a Three could have a zero transverse moment.</p> <p>Barrow ends by saying that his work is not intended to revolutionize rowing tactics. That seems overly modest. Clearly, Barrow's paper should be recognized as a master stroke.</p> <p>What's the betting that that we'll see at least one of the new rigs at the 2012 Olympics in London? <br></p> <p>Ref: <a href="http://arxiv.org/abs/0911.3551">arxiv.org/abs/0911.3551</a>: Rowing and the Same-Sum Problem Have Their Moments<br><br></p> <br style="clear:both"> <br style="clear:both"> <a href="http://ads.pheedo.com/click.phdo?s=0d0c1c411eb0dd2ba53f67b0503cfd3c&amp;p=1"><img alt="" style="border:0" border="0" src="http://ads.pheedo.com/img.phdo?s=0d0c1c411eb0dd2ba53f67b0503cfd3c&amp;p=1"></a> <img alt="" height="0" width="0" border="0" src="http://a.rfihub.com/eus.gif?eui=2225"><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=evD9OS5nmnY:gWa8di2ITo0:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=evD9OS5nmnY:gWa8di2ITo0:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=evD9OS5nmnY:gWa8di2ITo0:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=evD9OS5nmnY:gWa8di2ITo0:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/evD9OS5nmnY" height="1" width="1"/>http://feeds.technologyreview.com/click.phdo?i=0d0c1c411eb0dd2ba53f67b0503cfd3ctag:google.com,2005:reader/item/2980be9e7d82f4032009-11-20T14:26:12Z2009-11-20T14:26:12ZEn Allemagne des élèves apprennent les mathématiques en dansant ! On peut les admirer (ou non) en vidéo ici : Voilà encore une bonne idée pour l&#39;Education Nationale, n&#39;est-ce pas ? Dans l&#39;esprit moderne d&#39;interdisciplinarité on crée un cours traversal entre mathématiques,...<div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=orljUYzdvd0:P9MV1rnJL58:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=orljUYzdvd0:P9MV1rnJL58:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=orljUYzdvd0:P9MV1rnJL58:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=orljUYzdvd0:P9MV1rnJL58:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/orljUYzdvd0" height="1" width="1"/>MathOMantag:google.com,2005:reader/feed/http://www.mathoman.com/rss.phphttp://www.mathoman.com/index.php/1559-une-petite-danse-entre-deux-cours-de-mathstag:google.com,2005:reader/item/95977f99d83ba0f52009-11-20T06:00:01Z2009-11-20T06:00:01Z<b>Les maths</b> aux matheux ! Un rêve de littéraire : en 1re L, <b>les maths</b> disparaissent purement et simplement. A moins de les choisir en option, c'en est fini du calvaire de certains. En S en revanche, les matières scientifiques seront ...<div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=EtOuOzug3Zc:PNsYSXqs0f4:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=EtOuOzug3Zc:PNsYSXqs0f4:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=EtOuOzug3Zc:PNsYSXqs0f4:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=EtOuOzug3Zc:PNsYSXqs0f4:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/EtOuOzug3Zc" height="1" width="1"/>inconnutag:google.com,2005:reader/feed/http://blogsearch.google.com/blogsearch_feeds?hl=fr&lr=&as_drrb=q&as_qdr=d&q=%22les+maths%22&ie=utf-8&num=10&output=atomhttp://www.aujourdhui-en-france.fr/societe/reforme-du-lycee-de-l-eco-en-plus-mais-moins-de-maths-20-11-2009-717899.phptag:google.com,2005:reader/item/b5457c722eb6e8382009-11-20T16:41:29Z2009-11-20T16:41:29ZOn garde grosso modo la même filière L (avec quelques options "pour faire stylisé" ) en l'allégeant d'un enseignement scientifique, <b>les maths</b>. Pas difficile d'imaginer que les élèves vont encore s'orienter massivement en S, ...<div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=S2udv4q96P8:8ouotK7OX4E:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=S2udv4q96P8:8ouotK7OX4E:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=S2udv4q96P8:8ouotK7OX4E:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=S2udv4q96P8:8ouotK7OX4E:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/S2udv4q96P8" height="1" width="1"/>dav74130tag:google.com,2005:reader/feed/http://blogsearch.google.com/blogsearch_feeds?hl=fr&lr=&as_drrb=q&as_qdr=d&q=%22les+maths%22&ie=utf-8&num=10&output=atomhttp://forums.futura-sciences.com/enseignement-forum-enseignants/355377-reforme-lycee-sciences-mises-a-mal-une-de-plusoeoeoe.htmltag:google.com,2005:reader/item/a34fa6332655ca282009-11-20T16:50:00Z2009-11-20T17:12:35Z<p style="text-align:justify"><a href="http://singingbanana.com/">James Grime</a>, alias Singbanana, est mathématicien à Cambridge, ce qui ne l'empèche pas de faire son show.<br> <br> Entre Queen, l'établissement d'un théorème optimiste : "Tous les nombres sont intéressants" et son élection du meilleur mathématicien français, je vous laisse découvrir son univers avec l'ensemble de <a href="http://www.youtube.com/user/singingbanana">son parc vidéo</a>.</p> <p style="text-align:justify">J'ai découvert Singbanana via <a href="http://leguardien.wordpress.com/2009/11/19/qui-est-le-meilleur-mathematicien-francais/">Le Guardien</a>.</p> <p style="text-align:justify"> </p> <p> </p> <p style="text-align:center"> </p> <p> </p> <p style="text-align:center"> </p> <p style="text-align:center"> </p> <p style="text-align:center"> </p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=vlcLuMaK188:YvkA-fLE7oc:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=vlcLuMaK188:YvkA-fLE7oc:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=vlcLuMaK188:YvkA-fLE7oc:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=vlcLuMaK188:YvkA-fLE7oc:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/vlcLuMaK188" height="1" width="1"/>Olivier Leguaytag:google.com,2005:reader/feed/http://beverycool.hautetfort.com/atom.xmlhttp://www.inclassablesmathematiques.fr/archive/2009/11/20/la-chaine-video-de-singbanana.htmltag:google.com,2005:reader/item/c6b4d4f06f57aec92009-11-20T17:17:00Z2009-11-20T17:20:02ZLe lien ci-dessous conduit à une dépêche diffusée par le site VousNousIls.fr. Les dépêches diffusées par ce site sont régulièrement mises à jour et, de ce fait, il se peut que le lien donné cesse d'être fonctionnel au bout d'un certain temps. Les dernières dépêches diffusées par le site [...]<div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=nP6xq55yKe4:K6thhcXA2Io:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=nP6xq55yKe4:K6thhcXA2Io:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=nP6xq55yKe4:K6thhcXA2Io:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=nP6xq55yKe4:K6thhcXA2Io:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/nP6xq55yKe4" height="1" width="1"/>Domtag:google.com,2005:reader/feed/http://dp.over-blog.com/atom.phphttp://dp.over-blog.com/article--les-chefs-d-etablissements-accueillent-favorablement-la-reforme-du-lycee-depeche-afp--39728813.htmltag:google.com,2005:reader/item/b6f2c9e06f0aba0f2009-11-20T13:00:00Z2009-11-20T13:00:08Z<b><span style="font-family:arial"><span style="font-size:medium">799 </span></span></b><span style="font-family:arial"><span style="font-size:medium">= 17 x 47</span></span><div><span style="font-family:arial"><span style="font-size:medium"><br></span></span></div><div><b><span style="font-family:arial"><span style="font-size:medium">799 </span></span></b><span style="color:rgb(51, 51, 51);line-height:23px"><span style="font-family:arial"><span style="font-size:medium">is the smallest number with a composite sum of digits (7 + 9 + 9 = 25) and a prime sum of cubes of digits (7</span></span>^{<span style="font-family:arial"><span style="font-size:medium">3</span></span>}<span style="font-family:arial"><span style="font-size:medium"> + 9</span></span>^{<span style="font-family:arial"><span style="font-size:medium">3</span></span>}<span style="font-family:arial"><span style="font-size:medium"> + 9</span></span>^{<span style="font-family:arial"><span style="font-size:medium">3</span></span>}<span style="font-family:arial"><span style="font-size:medium"> = 1801).</span></span></span></div><div><span style="font-family:arial"><span style="font-size:medium"><br></span></span><div><b><span style="font-family:arial"><span style="font-size:medium">799 </span></span></b><span style="font-family:arial"><span style="font-size:medium">is a number that cannot be written as a sum of three squares.</span></span></div><span style="font-family:arial"><span style="font-size:medium"><br><div style="text-align:center"><a href="http://2.bp.blogspot.com/_Kom-mudcX5I/SwAEIqAxI4I/AAAAAAAAA70/pePPcUXxsAw/s1600-h/n0799.jpg"><img style="width:320px;height:154px" src="http://2.bp.blogspot.com/_Kom-mudcX5I/SwAEIqAxI4I/AAAAAAAAA70/pePPcUXxsAw/s320/n0799.jpg" border="0" alt=""></a></div></span></span></div><div><span style="font-family:arial"><span style="font-size:medium"><br></span></span></div><div><span style="font-family:arial"><span style="font-size:medium"><a href="http://server1.wikisky.org/starview?object_type=2&amp;object_id=3907&amp;object_name=NGC+799&amp;locale=EN">NGC </a><b><a href="http://server1.wikisky.org/starview?object_type=2&amp;object_id=3907&amp;object_name=NGC+799&amp;locale=EN">799</a></b> is a spiral galaxy in the constellation Cetus.</span></span></div><div><span style="font-family:arial"><span style="font-size:medium"><br></span></span></div><div><span style="font-family:arial"><span style="font-size:medium">Source: </span></span><a href="http://www.numbergossip.com/799"><span style="font-family:arial"><span style="font-size:medium">Number Gossip</span></span></a></div><div><img width="1" height="1" src="https://blogger.googleusercontent.com/tracker/1050326564532544980-2626430393085334101?l=maanumberaday.blogspot.com" alt=""></div><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=i7Pi4bNETRQ:bAk_nSr21QA:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=i7Pi4bNETRQ:bAk_nSr21QA:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=i7Pi4bNETRQ:bAk_nSr21QA:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=i7Pi4bNETRQ:bAk_nSr21QA:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/i7Pi4bNETRQ" height="1" width="1"/>MAA Blogstag:google.com,2005:reader/feed/http://maanumberaday.blogspot.com/feeds/posts/defaulthttp://maanumberaday.blogspot.com/2009/11/799.htmltag:google.com,2005:reader/item/b90d5c231f15207c2009-11-20T06:00:00Z2009-11-20T06:00:00ZJoël Merkertag:google.com,2005:reader/feed/http://images.math.cnrs.fr/spip/spip.php?page=backend<p>Le mauvais et plat concept d'égalité, c'est celui auquel tout le monde pense :</p> <div>A=A</div> <p>...</p> - <a href="http://images.math.cnrs.fr/-Billets-des-habitues-.html" rel="directory">Billets des habitués</a><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=Co3Zxquv1-U:xSPb8b8PmJQ:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=Co3Zxquv1-U:xSPb8b8PmJQ:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=Co3Zxquv1-U:xSPb8b8PmJQ:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=Co3Zxquv1-U:xSPb8b8PmJQ:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/Co3Zxquv1-U" height="1" width="1"/>http://images.math.cnrs.fr/Dynamique-de-l-egalite.htmltag:google.com,2005:reader/item/6e907bde71d7571b2009-11-19T19:06:00Z2009-11-20T19:34:00Z<p>Le beaujolais et le lycée nouveaux arrivent le même jour.</p> <p>Tous les détails sur <a href="http://www.education.gouv.fr/cid49667/vers-un-nouveau-lycee-en-2010.html">le dossier de Presse</a> du Ministère... pour le lycée seulement!</p> <p><a href="http://www.apmep.asso.fr/spip.php?article3151">La position de l'APMEP</a></p> <p><a href="http://www.letudiant.fr/etudes/lycee/la-reforme-du-lycee-decortiquee-et-commentee-17351.html">Le dossier de l'étudiant.fr</a></p> <p> </p> <p><span><a title="cliquez ici pour visualiser : Réformes" href="http://www.pearltrees.com/beverycool/map/1_98596/" name="pt-pearl-1_98596-438"><img src="http://www.pearltrees.com/s/embed/masked?treeID=98596" style="border:none;vertical-align:top" alt="Réformes"></a> </span></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=R1G3s5vAZ-o:k82RMsWhKCM:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=R1G3s5vAZ-o:k82RMsWhKCM:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=R1G3s5vAZ-o:k82RMsWhKCM:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=R1G3s5vAZ-o:k82RMsWhKCM:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/R1G3s5vAZ-o" height="1" width="1"/>Olivier Leguaytag:google.com,2005:reader/feed/http://beverycool.hautetfort.com/atom.xmlhttp://www.inclassablesmathematiques.fr/archive/2009/11/19/le-nouveau-lycee-prevu-en-2010.htmltag:google.com,2005:reader/item/f9eb68b4fb70fa752009-11-19T17:07:00Z2009-11-19T17:11:38Z<p style="text-align:justify">J'ai vraiment apprécié ce numéro 37 des Dossiers de La Recherche intitulé "<i>Le pouvoir des mathématiques</i>". Déjà j'ai bien aimé le petit éditorial, signé par un auteur, à l'égo peu mis en avant, ce qui est tellement rare dans notre monde, et qui s'appelle tout simplement: "La Recherche".</p> <p style="text-align:justify"><i>Les mathématiques sont la science de l'exploration en lien avec les autres sciences qui les alimentent.</i></p> <p style="text-align:justify">Pour chacun des articles suivants, j'ai reproduit <i>en italique</i> quelques courts extraits. L&#39;exercice est très personnel. Le mot &quot;algorithme&quot; est très présent dans le magazine, témoignant du rapprochement sans cesse croissant des problématiques théoriques mathématiques et informatiques…</p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=SQ4Aw_hH9k4:4dQkc9rdCiQ:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=SQ4Aw_hH9k4:4dQkc9rdCiQ:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=SQ4Aw_hH9k4:4dQkc9rdCiQ:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=SQ4Aw_hH9k4:4dQkc9rdCiQ:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/SQ4Aw_hH9k4" height="1" width="1"/>Olivier Leguaytag:google.com,2005:reader/feed/http://beverycool.hautetfort.com/atom.xmlhttp://www.inclassablesmathematiques.fr/archive/2009/11/12/0b26346c46786d653001b8a508b5cce3.htmltag:google.com,2005:reader/item/aa82a4df3ceaab612009-11-18T23:27:01Z2009-11-18T23:27:01Z<p><img src="http://profeblog.es/blog/jfguirado/files/2009/10/helter_skelter1.jpg" alt="helter_skelter1" width="329" height="329"></p> <p><img src="http://profeblog.es/blog/jfguirado/files/2009/10/helter_skelter2.jpg" alt="helter_skelter2" width="301" height="301"></p> <p><a href="http://www.drinkstuff.com/products/product.asp?ID=4943&amp;catID=24&amp;name=Helter+Skelter+Drinks+Chiller">Helter Skelter</a> <span>£19.95</span></p> <p><span>Visto en: <a href="http://www.laslentejas.com/2009/07/helter-skelter-para-enfriar-bebidas-sin-hielo/">LAS LENTEJAS</a><br> </span></p> <p><a href="http://profeblog.es/blog/jfguirado/?p=1474&amp;akst_action=share-this" title="E-mail this, post to del.icio.us, etc." rel="nofollow">Compártelo</a> </p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=ZW2uWqbzYMA:5mX7bkuiYOM:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=ZW2uWqbzYMA:5mX7bkuiYOM:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=ZW2uWqbzYMA:5mX7bkuiYOM:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=ZW2uWqbzYMA:5mX7bkuiYOM:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/ZW2uWqbzYMA" height="1" width="1"/>jfguirado14846202687153198458tag:google.com,2005:reader/feed/http://profeblog.es/blog/jfguirado/feed/http://profeblog.es/blog/jfguirado/2009/11/19/helices-y-espirales-para-enfriar-bebidas/tag:google.com,2005:reader/item/bca0f43add4b3f1f2009-11-18T20:21:38Z2009-11-18T20:21:38Zthibautlgtag:google.com,2005:reader/feed/http://del.icio.us/rss/tag/math%C3%A9matiques<span> <a href="http://delicious.com/post?url=http%3A%2F%2Fperso.ens-lyon.fr%2Fpierre.lescanne%2FPUBLICATIONS%2Fcalculabilite.pdf&amp;title=calculabilite.pdf%20%28Objet%20application%2Fpdf%29&amp;copyuser=thibautlg&amp;copytags=turing+godel+completude+inconsitence+logique+math%C3%A9matiques&amp;jump=yes&amp;partner=delrss&amp;src=feed_google" rel="nofollow" title="add this bookmark to your collection at http://delicious.com"><img src="http://l.yimg.com/hr/img/delicious.small.gif" alt="http://delicious.com" width="10" height="10" border="0"> Bookmark this on Delicious</a> - Saved by <a title="visit thibautlg&#39;s bookmarks at Delicious" href="http://delicious.com/thibautlg">thibautlg</a> to <a rel="tag" title="view thibautlg&#39;s bookmarks tagged turing" href="http://delicious.com/thibautlg/turing">turing</a> <a rel="tag" title="view thibautlg&#39;s bookmarks tagged godel" href="http://delicious.com/thibautlg/godel">godel</a> <a rel="tag" title="view thibautlg&#39;s bookmarks tagged completude" href="http://delicious.com/thibautlg/completude">completude</a> <a rel="tag" title="view thibautlg&#39;s bookmarks tagged inconsitence" href="http://delicious.com/thibautlg/inconsitence">inconsitence</a> <a rel="tag" title="view thibautlg&#39;s bookmarks tagged logique" href="http://delicious.com/thibautlg/logique">logique</a> <a rel="tag" title="view thibautlg&#39;s bookmarks tagged mathématiques" href="http://delicious.com/thibautlg/math%C3%A9matiques">mathématiques</a> - <a rel="self" title="view more details on this bookmark at Delicious" href="http://delicious.com/url/a7b0fded13ff68b9e7b5dc995d92fec0">More about this bookmark</a> </span><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=XI7pGWhGczw:UcSqzfwvOUA:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=XI7pGWhGczw:UcSqzfwvOUA:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=XI7pGWhGczw:UcSqzfwvOUA:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=XI7pGWhGczw:UcSqzfwvOUA:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/XI7pGWhGczw" height="1" width="1"/>http://perso.ens-lyon.fr/pierre.lescanne/PUBLICATIONS/calculabilite.pdftag:google.com,2005:reader/item/2a0c2b8869693b582009-11-19T14:02:00Z2009-11-19T14:10:11ZVoir : http://www.apmep.asso.fr/spip.php?article3151<div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=LZI4hPHrGQw:8beoCrmVMb4:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=LZI4hPHrGQw:8beoCrmVMb4:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?i=LZI4hPHrGQw:8beoCrmVMb4:F7zBnMyn0Lo" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?a=LZI4hPHrGQw:8beoCrmVMb4:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/OLeguaysSharedItemsInGoogleReader?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/OLeguaysSharedItemsInGoogleReader/~4/LZI4hPHrGQw" height="1" width="1"/>Domtag:google.com,2005:reader/feed/http://dp.over-blog.com/atom.phphttp://dp.over-blog.com/article-reforme-du-lycee-les-positions-et-propositions-de-l-association-des-professeurs-de-mathematiques-de-l-enseignement-public-apmep-19-novembre-2009--39659405.htmltag:google.com,2005:reader/item/7d2bd99f34bcf2532009-11-19T07:00:00Z2009-11-19T07:00:00ZPascal Chossattag:google.com,2005:reader/feed/http://images.math.cnrs.fr/spip/spip.php?page=backend<p>Un jour, j'expliquais à un collègue américain qui venait d'écrire un livre « grand public » que cela me semblait une perte de temps....</p> - 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