Tag Archives: Excel

On long and short formulas and VBA

Posted on July 17, 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 July 11, 2021 by dougaj4

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 …

Posted on June 27, 2021 by dougaj4

… 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

Using Numba with Excel and pyxll …

Posted on May 30, 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

ULS Design Functions update

Posted on May 23, 2021 by dougaj4

The ULS Design Functions spreadsheet has been updated with further changes related to the new Australian Standard for concrete structures; AS 3600-2018, and with some other fixes.  The new version can be downloaded from: ULS Design Functions.zip The changes in … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , | 13 Comments