Category Archives: UDFs

Longitudinal force due to shear – update

Posted on 09/10/2023 by dougaj4

In the post RC Design Functions 9.03; compression strut angle adjustment I recommended that when finding the longitudinal force due to shear according to AS 5100.5 (Amendment 1), the effect of increased vertical shear reinforcement should be limited in accordance … Continue reading →

Posted in Concrete, Excel, Link to Python, Newton, PyXLL, UDFs, VBA | Tagged , , , , , , , , | 1 Comment

Counting words in a list and dictionary links

Posted on 26/09/2023 by dougaj4

This post presents two methods for extracting all the different words from a list and counting the number of occurrences of each word. The spreadsheet, including full open-source VBA code, can be downloaded from: CountWords.zip As an example, I have … Continue reading →

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

Dynamic charts

Posted on 23/07/2023 by dougaj4

A frequently asked question is how to get Excel charts to automatically update when new data is added outside the original selected ranges. The most frequent recommendation (such as here) is to convert the data to a table, then insert … Continue reading →

Posted in Charts, Charts, Concrete, Excel, UDFs | Tagged , , , , , | Leave a comment

Speed of Scipy Linear Algebra Solvers

Posted on 14/06/2023 by dougaj4

The files presented in the recent post on Scipy Linear Algebra Solvers include a wide range of different solver types, with in some cases numerous sub-options, allowing the functions to be called from Excel, and greatly extending and speeding up … Continue reading →

Posted in Arrays, Excel, Finite Element Analysis, Frame Analysis, Link to dll, Link to Python, Newton, NumPy and SciPy, PyXLL, UDFs | Tagged , , , , , | 2 Comments

Scipy linear algebra functions in Excel

Posted on 30/05/2023 by dougaj4

The file pyLinAlgfuncs3.zip has open source Python code allowing the Scipy linear algebra functions to be called from Excel using the pyxll add-in. It also includes all the Python code to perform LU decomposition, as discussed in the previous post., … Continue reading →

Posted in Arrays, Excel, Finite Element Analysis, Frame Analysis, Link to Python, Maths, Newton, NumPy and SciPy, PyXLL, UDFs | Tagged , , , , , , | 2 Comments