Category Archives: Newton

Eval and Let examples

Posted on 21/02/2021 by dougaj4

Final example updated 28th Feb 2021, following comment from Craig: There are many examples of the use of the new Let function on the web (see my previous post on this topic for links). This post compares use of Let … Continue reading →

Posted in Excel, Maths, UDFs, VBA | Tagged , , , , , | 9 Comments

Ebony Buckle, New Scientist, and the 52 Hz Whale

Posted on 19/02/2021 by dougaj4

We last heard from Ebony Buckle here nearly 8 years ago, but I noticed her name in an article on the back page of last week’s New Scientist, which noted that her latest work was inspired by the World’s loneliest … Continue reading →

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Python callable arguments from Excel

Posted on 29/01/2021 by dougaj4

Many Scipy functions have “callable” arguments, i.e. functions that can be called, with the returned data used as input by the calling function. Types of callable arguments include: Functions in the active Python module Functions in any active loaded library … Continue reading →

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

Python optional arguments from Excel – Part 2

Posted on 19/01/2021 by dougaj4

The previous post provided a method for using pyxll to pass optional arguments from Excel to Python whilst preserving the default values of any called Python function for arguments that were omitted in the Excel function. One condition where this … Continue reading →

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

Units4Excel Update

Posted on 29/12/2020 by dougaj4

As discussed here, I have updated the Units4Excel spreadsheet, with the list of non-SI units updated from the latest Wikipedia table. The EvalU user defined function (UDF) has also been modified with three output options, as shown in the screen-shot … Continue reading →

Posted in Excel, Maths, Newton, UDFs, VBA | Tagged , , , , | 5 Comments