Tag Archives: Excel

Evaluating text with units and finding the neutral axis

A few weeks ago a comment asked for guidance on finding the moment capacity of a reinforced concrete section.  This post will look at finding the depth of the neutral axis (NA) in a rectangular section, with a single layer of … Continue reading

Posted in Beam Bending, Concrete, Excel, Maths, Newton, UDFs, VBA | Tagged , , , , , , , , , , | Leave a comment

On not using Hungarian Notation, and VBA shortcuts

In June this year Michael Alexander at Bacon Bits had a post on using Hungarian Notation (or not).  It contained the following quote from Stackoverflow, which for me sums up excellently a good reason for not using it: “vUsing adjHungarian nNotation vMakes … Continue reading

Posted in Excel, VBA | Tagged , , , | 1 Comment

The Countif bug (and how to avoid it)

The Countif function counts the number of cells in a range that match some criterion.  If we enter 1,2,3 in cells A1:A3 and enter =COUNTIF($A$1:$A$3,A1) somewhere else, it will return 1: But if we enter three text strings with 16 … Continue reading

Posted in Computing - general, Excel | Tagged , , , , , | Leave a comment

Excel Uservoice and Python for Excel

The Excel Uservoice site is a forum for users to post suggestions for improvements to Excel.  A suggestion to add native Python support to Excel, as a replacement to VBA, has had by far the most votes since the start, and … Continue reading

Posted in Computing - general, Excel, Link to Python, VBA | Tagged , , , , | 1 Comment

Section Properties with MeshPY, including torsion and warping

I recently discovered robbie van leeuwen’s structural engineering blog, which has an open-source set of Python routines for calculation of section properties, including torsion and warping constants.  The program uses the MeshPY Library for generating the finite element meshes required … Continue reading

Posted in Beam Bending, Concrete, Excel, Finite Element Analysis, Frame Analysis, Link to Python, Maths, Newton, Numerical integration, NumPy and SciPy, Strand7, UDFs, VBA, xlwings | Tagged , , , , , , , , | 4 Comments

Brent’s Method; Update and Examples

Has the free software at this site saved you time and/or money? If so, please contribute to the Raw Impact charity group providing practical help to poor communities in Cambodia: Everydayhero – Cambodia 2018 All contributions gratefully accepted. Contributions are … Continue reading

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

Update to AL-Spline-Matrix

Has the free software at this site saved you time and/or money? If so, please contribute to the Raw Impact charity group providing practical help to poor communities in Cambodia:  Everydayhero – Cambodia 2018 All contributions gratefully accepted. Contributions are … Continue reading

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