Use Msdn to search the Web.http://feedproxy.google.com/~r/microsoft/bIiF/~3/-78AA87RfrY/213939For detailed information about the algorithms used to create the Microsoft Excel engineering functions, refer to the following book:<img src="http://feeds.feedburner.com/~r/microsoft/bIiF/~4/-78AA87RfrY" height="1" width="1"/>http://support.microsoft.com/kb/213939http://feedproxy.google.com/~r/microsoft/bIiF/~3/PTdG3MbUzhQ/149236For detailed information about the algorithms used to create the Microsoft Excel engineering functions, refer to the following book:<img src="http://feeds.feedburner.com/~r/microsoft/bIiF/~4/PTdG3MbUzhQ" height="1" width="1"/>http://support.microsoft.com/kb/149236http://feedproxy.google.com/~r/microsoft/bIiF/~3/44YfGtvyeCI/253235You don't need to write your own calculation engine to provide the multitude of mathematical, financial, and engineering functions that Excel provides; Instead, you can automate ...<img src="http://feeds.feedburner.com/~r/microsoft/bIiF/~4/44YfGtvyeCI" height="1" width="1"/>http://support.microsoft.com/kb/253235http://feedproxy.google.com/~r/microsoft/bIiF/~3/E6YNIuvm_zE/914208The tools use the appropriate statistical or engineering macro functions, and then display the results in an output table. Some tools generate charts and also output tables.<img src="http://feeds.feedburner.com/~r/microsoft/bIiF/~4/E6YNIuvm_zE" height="1" width="1"/>http://support.microsoft.com/kb/914208http://feedproxy.google.com/~r/microsoft/bIiF/~3/hRSkJoiJTO0/262339... also applies to the following worksheet functions: ODDFPRICE; ODDLPRICE; ODDLYIELD; For more information about the resources used to derive financial, statistical, and engineering ...<img src="http://feeds.feedburner.com/~r/microsoft/bIiF/~4/hRSkJoiJTO0" height="1" width="1"/>http://support.microsoft.com/kb/262339http://feedproxy.google.com/~r/microsoft/bIiF/~3/194ywgGhOq0/aa905420.aspxAnnouncing Office 2010 and PowerPivot Beta Availability From the Office 2010 Engineering ... BI303—Developing User Defined Functions for Excel 2007 and Excel Services<img src="http://feeds.feedburner.com/~r/microsoft/bIiF/~4/194ywgGhOq0" height="1" width="1"/>http://msdn.microsoft.com/en-us/office/aa905420.aspx