Category Archives: Excel

Building dances to an earthquake’s beat

Posted on 28/05/2020 by dougaj4

Adam Pascale from the Seismology Research Centre recently shared this animation (click on controls bottom right for High Quality and Full Screen views): … it’s from a building in the Philippines about 130km (hypocentral distance) from a magnitude 6.1 earthquake … Continue reading →

Posted in Animation, Computing - general, Newton | Tagged , | Leave a comment

New sort functions and sorting to groups

Posted on 16/05/2020 by dougaj4

I first posted a user defined function (UDF) to sort spreadsheet or VBA data back in 2009.  Finally Microsoft have caught up, and Excel 365 subscribers now have two built in sort functions available: =SORT(array,[sort_index],[sort_order],[by_col]) =SORTBY(array, by_array1, [sort_order1], [by_array2, sort_order2],…) … Continue reading →

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Getting near matches from a list with Python

Posted on 19/04/2020 by dougaj4

To return a list of near matches from a long list of strings would be quite difficult in VBA (unless I’m missing something), but in Python it is very simple.  Here is the code for this operation, using pyxll to … Continue reading →

Posted in Excel, Link to Python, PyXLL, UDFs | Tagged , , , , , | Leave a comment

Dancing Pendulums Revisited

Posted on 12/04/2020 by dougaj4

I have previously posted on Dynamically Defined Dancing Pendulums, using the Strand7 FEA program to generate the motion of a series of pendulums of varying length.  I have now updated that video using the latest Beta version of the program (Rel … Continue reading →

Posted in Animation, Finite Element Analysis, Frame Analysis, Newton, Strand7 | Tagged , , , , , | Leave a comment

Stepping through Python code called from Excel

Posted on 31/03/2020 by dougaj4

Setting up your editor to allow Python code debugging for functions called from Excel can be tricky, depending on the details of your editor and linking software, but using the Visual Studio Code Editor and Pyxll, this works for me: … Continue reading →

Posted in Computing - general, Excel, Link to Python, PyXLL, UDFs | Tagged , , , , | 4 Comments