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Tag Archives: Excel
Cubic splines with jagged data
A cubic spline provides a good approximation to a smooth curve, and alternative versions are available for free download (see Daily Download 22: Splines and Curves, Update to AL-Spline-Matrix, and xlwSciPy 1.09 – update for xlwings 0.10 and Scipy 0.18.1), but if … Continue reading
Posted in Arrays, Beam Bending, Concrete, Curve fitting, Excel, Newton, UDFs, VBA
Tagged CSplineA, Cubic splines, Excel, fitting jagged data, MSplineA, UDF, VBA
2 Comments
Evaluating text with units and finding the neutral axis
A few weeks ago a comment asked for guidance on finding the moment capacity of a reinforced concrete section. This post will look at finding the depth of the neutral axis (NA) in a rectangular section, with a single layer of … Continue reading
Posted in Beam Bending, Concrete, Excel, Maths, Newton, UDFs, VBA
Tagged depth of neutral axis, elastic analysis, EvalU, evaluate text strings, evaluate units, Excel, Reinforced Concrete, UDF, ULS analyis, unit aware, VBA
7 Comments
On not using Hungarian Notation, and VBA shortcuts
In June this year Michael Alexander at Bacon Bits had a post on using Hungarian Notation (or not). It contained the following quote from Stackoverflow, which for me sums up excellently a good reason for not using it: “vUsing adjHungarian nNotation vMakes … Continue reading
The Countif bug (and how to avoid it)
The Countif function counts the number of cells in a range that match some criterion. If we enter 1,2,3 in cells A1:A3 and enter =COUNTIF($A$1:$A$3,A1) somewhere else, it will return 1: But if we enter three text strings with 16 … Continue reading
Posted in Computing - general, Excel
Tagged bug, CHAR(173), COUNTIF, Excel, Sum, Sumproduct
2 Comments
Excel Uservoice and Python for Excel
The Excel Uservoice site is a forum for users to post suggestions for improvements to Excel. A suggestion to add native Python support to Excel, as a replacement to VBA, has had by far the most votes since the start, and … Continue reading
Posted in Computing - general, Excel, Link to Python, VBA
Tagged Excel, Python, survey, uservoice, VBA
1 Comment
