Category Archives: Excel

Dynamic array update and the @ operator

Posted on 11/06/2026 by dougaj4

Many of the user defined functions (UDF’s) presented in this blog return an array rather than a single value. Options for displaying arrays in Excel have changed significantly in recent years and this post looks at the most efficient ways … Continue reading →

Posted in Arrays, Excel, Link to Python, PyXLL, UDFs, VBA | Tagged , , , , , , , , | Leave a comment

Monte Carlo simulation with Excel and Python

Posted on 31/05/2026 by dougaj4

The pyxll blog has a post from last year on Monte Carlo Simulations in Excel with Python, with examples and full code going from the simplest implementation to more refined code allowing all the calculations to be set up on … Continue reading →

Posted in Beam Bending, Concrete, Excel, Link to Python, Maths, Newton, NumPy and SciPy, UDFs | Tagged , , , , , , , | Leave a comment

FeedSpot

Posted on 24/05/2026 by dougaj4

Feedspot is a blog database with a huge list of different categories, each with listings of the best blogs, including: 60 Best Excel Blogs to Follow in 2026 with a wide range of blogs, including: For a complete list of … Continue reading →

Posted in Computing - general, Excel | Tagged , , | Leave a comment

Scipy-statistics with all distributions

Posted on 17/05/2026 by dougaj4

Following the previous post the Scipy statistics functions have been updated to include all the distributions, including the discrete distributions. The input to the distribution functions has also been updated to allow arrays to be transferred either as Excel ranges … Continue reading →

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

Transferring different data types to/from Python with pyxll

Posted on 12/05/2026 by dougaj4

When a user defined function (UDF) is created in Excel with Python and pyxll the data type of each argument can be specified, either in the @xl_func decorator, or with a separate @xl_arg decorator for each argument. I prefer the … Continue reading →

Posted in Arrays, Excel, Link to Python, Newton, NumPy and SciPy, PyXLL, UDFs | Tagged , , , , , , , , , | 1 Comment