Tag Archives: UDF

Tanh-Sinh Quadrature V2.0

Posted on 04/04/2011 by dougaj4

I recently received an update of the Tanh-Sinh Quadrature spreadsheet from Graeme Dennes, which can be downloaded from:  Tanh-Sinh Quadrature (including, as usual, full open source code). – Link fixed 5th April 2011 Here is Graeme’s description of the updates: The … Continue reading →

Posted in Excel, Maths, Newton, Numerical integration, UDFs, VBA | Tagged , , , , | 2 Comments

PView Function

Posted on 31/03/2011 by dougaj4

As promised in the previous post, here are further details of the PView User Defined Function (UDF), included in the IP2 spreadsheet, which can be downloaded (including full open source code) from IP2.ZIP. The PView UDF works by multiplying the 3D … Continue reading →

Posted in Arrays, Charts, Charts, Coordinate Geometry, Drawing, Excel, Maths, UDFs, VBA | Tagged , , , , , , | 3 Comments

More 3D Intersections and 3D plotting function

Posted on 28/03/2011 by dougaj4

Following the previous post, I have added several new functions connected with intersections of lines and planes, and a function to generate a perspective plot from 3D coordinates.  The new functions have been added to the IP2.xls worksheet, which can … Continue reading →

Posted in Coordinate Geometry, Excel, Maths, Newton, UDFs, VBA | Tagged , , , , , , , | 7 Comments

3D Intersections

Posted on 19/03/2011 by dougaj4

Following a discussion at the Eng-Tips Forum, I have written an Excel User Defined Function (UDF) to find the intersection point of two 3D line segments.  The UDF has been added to the IP2 spreadsheet, which is available for free … Continue reading →

Posted in Coordinate Geometry, Excel, Maths, Newton, UDFs, VBA | Tagged , , , , | 7 Comments

Double Exponential Quadrature

Posted on 07/03/2011 by dougaj4

Graeme Dennes has updated his Tanh-Sinh Quadrature spreadsheet to include Double Exponential Quadrature.  His brief notes are given below, and more details and links to background information are included in the download file. ================================================================= Double Exponential Quadrature UDFs added to Tanh-Sinh Quadrature … Continue reading →

Posted in Excel, Maths, Newton, Numerical integration, UDFs, VBA | Tagged , , , , , | 1 Comment