Category Archives: Link to Python

3D plots with the latest Matplotlib

Installing Python on a new computer, I found I had to downgrade Matplotlib to release 3.5.2 to get my 3D plotting functions to work. Further investigation found that the problem was the Axes3D function. Changing:     ax = axes3d.Axes3D(fig)to: … Continue reading

Posted in Animation, Coordinate Geometry, Drawing, Excel, Link to Python, Newton, NumPy and SciPy, PyXLL, UDFs | Tagged , , , , , , | 2 Comments

Installing Python and pyxll from scratch

Updated 28th September 2022. Matplotlib latest version OK. I recently installed Python and pyxll (plus the required additional libraries) on a new computer, which raised a few problems with incompatible versions, so here is a summary of what worked (as … Continue reading

Posted in Animation, Arrays, Charts, Coordinate Geometry, Differential Equations, Excel, Finite Element Analysis, Link to Python, Maths, Newton, Numerical integration, NumPy and SciPy, Python Pandas, PyXLL, UDFs | Tagged , , , , , , , , , , , , , , | Leave a comment

Installing PyPardiso and speed of Scipy spsolve

I recently upgraded to Python 3.10, and because of some problems with my previous installation I decided to do a complete new installation using pip, which required installation of all the libraries needed for my various programs. For my linear … Continue reading

Posted in Excel, Finite Element Analysis, Frame Analysis, Link to Python, Newton, NumPy and SciPy, PyXLL, UDFs | Tagged , , , , , , | 1 Comment

Removing Add-ins

Recently I had problems with an Excel Add-in that was still trying to run, and generating error messages, even after being removed from the add-in list and uninstalled. After much searching and trying suggested methods that didn’t work, I finally … Continue reading

Posted in Computing - general, Excel, Link to dll, Link to Python, VBA | Tagged , , , , , , | Leave a comment

Listing Python modules and getting help docs from Excel

Python functions include detailed help documentation but to access this you need the full path to the function, including the names of all code modules and submodules. This post looks at how this information can be found using Excel with … Continue reading

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