Category Archives: UDFs

More on Numba

Posted on 15/08/2021 by dougaj4

Following my recent post Making Finite Element Analysis go faster … I have been having a closer look at the options in the Numba just-in-time compiler for improving the performance of Python code. The Numba docs include a series of short … Continue reading →

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

A Numpy trap – correction

Posted on 20/07/2021 by dougaj4

In my post of 30th May this year (here) I said that: As a check that the functions were working correctly, the Python functions were modified to return the sum of the largest array in the first row, revealing that … Continue reading →

Posted in Arrays, Excel, Link to Python, NumPy and SciPy, PyXLL, UDFs | Tagged , , , , , | Leave a comment

On long and short formulas and VBA

Posted on 17/07/2021 by dougaj4

A recent thread at Eng-Tips asked the following apparently simple question: Starting with a string consisting of numbers with a single central group of letters, how can this string be truncated at the end of the letters, so that for … Continue reading →

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

ULS Design Functions 2.13

Posted on 11/07/2021 by dougaj4

Update 17 May 2022: Following discussion on 10-11 May 22 the download file has been updated to version 2.15, fixing problems with the interaction diagram with a rectangular stress block under high axial loads. I have uploaded another update to … Continue reading →

Posted in Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , , | 25 Comments

Using Numba with Excel and pyxll …

Posted on 30/05/2021 by dougaj4

… and a Numpy trap. I last looked at using the just-in-time compiler Numba with Python some time ago (Two Timers), but I was prompted to take another look by an article in Medium that claimed Python Can Be Faster … Continue reading →

Posted in Arrays, Excel, Link to Python, NumPy and SciPy, PyXLL, UDFs, VBA | Tagged , , , , , , , | 2 Comments