Category Archives: Excel

Tanh-Sinh Quadrature update

Posted on November 26, 2020 by

Following some comments here Graeme Dennes and I have modified the start-up code for the Tanh-Sinh Quadrature spreadsheet to avoid problems opening the file when first downloaded, or copied to a new computer. The new file is located (as before) … Continue reading →

Posted in Excel, Maths, Newton, Numerical integration, UDFs, VBA | Tagged , , , | Leave a comment

Newton-Raphson and Brent’s Method – Solver examples

Posted on November 8, 2020 by

I recently discovered the Computing Skillset site (via open-struct-engineer), which has good information on the basis and use of the Newton-Raphson method: The Newton Raphson method explained, details, pictures, python code Highly instructive examples for the Newton Raphson method I … Continue reading →

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Numerical Integration With Tanh-Sinh Quadrature v 5.0

Posted on October 29, 2020 by

Graeme Dennes has updated his Tanh-Sinh Quadrature spreadsheet to V 5.0. The new version (including full open source code) may be downloaded from: Tanh-Sinh Quadrature Graeme’s summary of the new features in the spreadsheet: The Tanh-Sinh quadrature workbook has been … Continue reading →

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Open Source FEA Code Links

Posted on October 25, 2020 by

There have been many posts here based on code from the book Programming The Finite Element Method, with the Fortran code either translated to VBA, or with VBA links to compiled Fortran Code. I recently discovered: The “Programming the Finite … Continue reading →

Posted in Computing - general, Excel, Finite Element Analysis, Fortran, Frame Analysis, Link to Python | Tagged , , , , | 1 Comment

Using Excel with Python and ctypes

Posted on October 5, 2020 by

The Strand7 API provides an interface between the Strand7 Finite Element Analysis program and external software. It works with many different languages, including Python, which uses ctypes to transfer data to and from the API functions. It is essential that … Continue reading →

Posted in Beam Bending, Excel, Link to dll, Link to Python, NumPy and SciPy, PyXLL, Strand7, UDFs | Tagged , , , , , | Leave a comment