Category Archives: UDFs

Animations from VBA

Posted on 28/11/2021 by dougaj4

A convenient way to create an animation in Excel is to create on-sheet formulas or user defined functions to generate the required data, then use VBA to iterate through the range of input values so that the chart or image … Continue reading →

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

Tanh-Sinh Quadrature v. 5.03

Posted on 22/11/2021 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 , , , | 5 Comments

Using Matplotlib from Excel with pyxll

Posted on 04/11/2021 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 , , , , , , | 1 Comment

Installing PyPardiso

Posted on 24/10/2021 by dougaj4

Update 5th June 2022: The PyPardiso package may now be installed simply with pip (see Installing PyPardiso and speed of Scipy spsolve): Install the MKL library: pip install mkl Install PyPardiso: pip install pypardiso The PyPardiso package provides an interface to … Continue reading →

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

ConbeamU update

Posted on 28/09/2021 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 , , , , , , , , | 4 Comments