Tag Archives: Python

Longitudinal force due to shear – update

Posted on 09/10/2023 by dougaj4

In the post RC Design Functions 9.03; compression strut angle adjustment I recommended that when finding the longitudinal force due to shear according to AS 5100.5 (Amendment 1), the effect of increased vertical shear reinforcement should be limited in accordance … Continue reading →

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

Python in Excel – two views

Posted on 02/09/2023 by dougaj4

Microsoft recently announced that it is now possible to access Python from within Excel worksheets. This functionality is currently only available to Excel 365 users on the Insiders – Beta channel, who can access it at no cost. When it … Continue reading →

Posted in Excel, Link to Python, Python Pandas, PyXLL | Tagged , , , , | 2 Comments

3DFrame-py

Posted on 05/07/2023 by dougaj4

My 3DFrame spreadsheet has now been converted to Python code and can be downloaded from: 3DFrame-py.zip The frame analysis uses the Scipy linear algebra functions called from pyLinalgfuncs3, which must be available on the Python path: pyLinAlgfuncs3.zip The 3DFrame-py download … Continue reading →

Posted in Arrays, Excel, Finite Element Analysis, Frame Analysis, Link to Python, Newton, NumPy and SciPy, PyXLL, Strand7, VBA | Tagged , , , , , , , | 3 Comments

Speed of Scipy Linear Algebra Solvers

Posted on 14/06/2023 by dougaj4

The files presented in the recent post on Scipy Linear Algebra Solvers include a wide range of different solver types, with in some cases numerous sub-options, allowing the functions to be called from Excel, and greatly extending and speeding up … Continue reading →

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

LU Decomposition with Python and Scipy

Posted on 26/05/2023 by dougaj4

This post was prompted by a question at the Eng-Tips forum: LU Decomposition which asked why Mathcad was generating LU matrices different to those calculated from the basic theory. The short answer was that there is more than one way … Continue reading →

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