Category Archives: Arrays

Contour plots with Excel and Matplotlib – 2 

The procedures discussed in the previous post required the contour data to be arranged on a regular rectangular grid, with the data points listed in a 2D array. As far as I know there is no built in alternative in … Continue reading

Posted in Arrays, Charts, Excel, Finite Element Analysis, Link to Python, Newton, NumPy and SciPy, PyXLL, Strand7, UDFs | Tagged , , , , | Leave a comment

Contour plots with Excel and Matplotlib

Contour plots are widely used for a great variety of purposes, but facilities for producing them in Excel are very limited, and those that are provided are very well hidden. In this post I will look at some simple examples … Continue reading

Posted in Arrays, Charts, Charts, Excel, Finite Element Analysis, Link to Python, NumPy and SciPy, PyXLL, Strand7, UDFs | Tagged , , , , , | Leave a comment

Making Finite Element Analysis go faster – Update and PyPardiso

The previous post on this topic looked at the performance of alternative Scipy sparse equation solvers. This post updates those results with the current Scipy version (1.7.1), with very different results. It also compares the Scipy solver performance with the … Continue reading

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

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

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 , , , , , , , , | 3 Comments