Category Archives: UDFs

Tanh-Sinh Quadrature v. 5.03

Posted on November 22, 2021 by dougaj4

Following some recent comments Graeme Dennes has released the latest version the Tanh-Sinh Quadrature spreadsheet with some corrections to the test function documentation. The new file is located (as before) at: Tanh-Sinh Quadrature For more information on the last major release … Continue reading →

Posted in Excel, Maths, Newton, Numerical integration, UDFs, VBA | Tagged , , , | 4 Comments

Using Matplotlib from Excel with pyxll

Posted on November 4, 2021 by dougaj4

The pyxll documentation has many examples of plotting in Excel using Matplotlib and other packages, but I find the multiple options confusing and hard to follow, so this post works through the examples in the Matplotlib Users Guide tutorial. The … Continue reading →

Posted in Charts, Charts, Drawing, Excel, Link to Python, PyXLL, UDFs | Tagged , , , , , , | Leave a comment

Installing PyPardiso

Posted on October 24, 2021 by dougaj4

The PyPardiso package provides an interface to the Intel MKL Pardiso library to solve large sparse linear systems of equations. Trying to install this package with Conda raises the message: To search for alternate channels that may provide the conda package you’relooking … Continue reading →

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

ConbeamU update

Posted on September 28, 2021 by dougaj4

I recently discovered that the continuous beam function from the ConbeamU spreadsheet was giving incorrect results for cantilevers at the left hand end, if the cantilever had more than one segment and no point loads. The corrected version (Rel 4.16) … Continue reading →

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, Strand7, UDFs, VBA | Tagged , , , , , , , , | Leave a comment

More on Numba

Posted on August 15, 2021 by dougaj4

Following my recent post Making Finite Element Analysis go faster … I have been having a closer look at the options in the Numba just-in-time compiler for improving the performance of Python code. The Numba docs include a series of short … Continue reading →

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