Tag Archives: Units

Units and solvers with Pint and Sympy

Posted on July 29, 2018 by

Following the previous post I have adapted the units code to use the Pint package, and added a function using the Sympy equation solver, with Pint units.  I have applied the functions to finding the depth of neutral axis of a … Continue reading →

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Evaluating text – update

Posted on June 28, 2014 by

One disadvantage of the spreadsheet style interface is that even simple formulae are difficult to check.  For instance, the deflection of a cantilever loaded at the end is given by: F*L^3/(3*E*I) which is much easier to read than the Excel … Continue reading →

Posted in AlgLib, Excel, Maths, Newton, Numerical integration, UDFs, VBA | Tagged , , , , , , , | 4 Comments

Feet and inches, and other units

Posted on May 31, 2014 by

Following a query at Eng-tips I have had a look at options in Excel for converting metres to feet and inches, with the inches displayed as a fraction rather than a decimal. Converting from metres to feet or inches is … Continue reading →

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Units for Excel 5:

Posted on August 28, 2012 by

Previous post on Units for Excel Download spreadsheet: Units4Excel.zip I have posted a new update of the Units4Excel spreadsheet for download (link above).  The main changes are: The ConvertA and ConvertA2 functions have been combined. The ToSI and FromSI functions have been deleted, … Continue reading →

Posted in Excel, Newton, UDFs, VBA | Tagged , , , , , | 3 Comments

Units for Excel 4: Scripting dictionaries

Posted on August 8, 2012 by

As mentioned in the previous post I have now updated the Units4Excel spreadsheet with the use of scripting dictionaries to speed up the process of finding units in the lists, and also to simplify the process of adding or deleting units.  … Continue reading →

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Units for Excel 3 – Editing the units table

Posted on August 4, 2012 by

I have made several changes to the Units4Excel spreadsheet: Litres added as the base SI unit of fluid volume. Units added for specific heat Units added for fuel consumption in both km/litre and litres/100 km form As before, the revisions … Continue reading →

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Units for Excel 2 – Unit aware evaluation of functions

Posted on July 31, 2012 by

The Units4Excel spreadsheet described in the first post of this series provides functions to convert values from one set of units to another, but does not allow for automatic evaluation of functions, taking account of the specified units, as performed by programs … Continue reading →

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