Tag Archives: Excel

Precise Angles and XNumbers

Posted on 28/01/2013 by dougaj4

Further to comments by Georg under: The angle between two vectors, in 2D or 3D I have added four alternative ways of calculating the angle between two 3D vectors to the VectorFunc spreadsheet.  The new version can be downloaded from: http://interactiveds.com.au/software/VectorFunc.xlsb. … Continue reading →

Posted in Coordinate Geometry, Excel, Maths, Newton, UDFs, VBA | Tagged , , , , , | Leave a comment

Charts and Charting

Posted on 27/01/2013 by dougaj4

I don’t do a lot on Excel charts because there are already a number of excellent blogs and sites that specialise in that area; notably: Peltier Tech Blog but after compiling my “Downloads by Category” page I found that I … Continue reading →

Posted in Charts, Excel, UDFs, VBA | Tagged , , , | Leave a comment

Counting unique values from a range or array

Posted on 26/01/2013 by dougaj4

About this time last year, I posted a User Defined Function (UDF) that would return a list of unique items from a list: https://newtonexcelbach.wordpress.com/2012/01/31/retrieving-unique-values-from-a-range-or-array/ That post has recently received a few comments, and coincidentally Colin Legg at RAD Excel has … Continue reading →

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New Release Alglib Library

Posted on 22/01/2013 by dougaj4

The Alglib Numerical Analysis Library has just been updated.  For full details of the changes see: http://www.alglib.net/arcnews.php#date_18_01_2013 , but the significant change for routines linking to my spreadsheets is that the sparse solver  has been significantly improved and now successfully solves problems … Continue reading →

Posted in AlgLib, Excel, Finite Element Analysis, Link to dll, Maths, Newton | Tagged , , , | Leave a comment

3DFrame – 3D Frame analysis for Excel

Posted on 22/01/2013 by dougaj4

I have now extended the Frame4 spreadsheet to deal with 3D frames.  As well as making the necessary changes to the input ranges and stiffness matrix generation routines I have revised the Sparse solver routine, added a new compiled solver, and … Continue reading →

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Link to dll, Newton, Strand7, VBA | Tagged , , , , | 21 Comments