Category Archives: Excel

A Numpy trap – correction

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

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

I have uploaded another update to the ULS Design Functions spreadsheet with some new features and fixes.  The new version can be downloaded from: ULS Design Functions.zip The changes in the new version are: Stress block type 3 will now … Continue reading

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

Making Finite Element Analysis go faster …

… with Numba and Scipy sparse matrix functions. As promised in the previous post in this series, I will be looking at speeding up the formation and solving of matrix functions for the analysis of structural frames, using Excel and … Continue reading

Posted in Arrays, Excel, Finite Element Analysis, Frame Analysis, Link to Python, NumPy and SciPy, PyXLL | Tagged , , , , , , , , | Leave a comment

Downloading with Chrome

I recently discovered (via a helpful comment) that clicking on any download link on this blog, when using Chrome, raised a message saying: The site ahead contains harmful programs I have now managed to get Google to agree that there … Continue reading

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