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Author Archives: dougaj4
Indexing pdf files, yet again
Recent versions of Windows have provided indexing of file contents that allows for fast searches over the entire contents of your hard disk. This includes pdf files, but the default filter file only works with 32 bit Windows. It is … Continue reading
The answer to Life the Universe and Everything …
is 42, as is well-known: The actual question, to which the answer is 42, is not known, but a lesser known long standing question involving this number has recently been solved: The original problem, set in 1954 at the University … Continue reading
Posted in Computing - general, Excel, Maths, Newton, PyXLL
Tagged 42, Excel, Life the Universe and Everything, mpmath, PyXLL
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Plotting Mandelbrot
There are many sites discussing the Mandelbrot Set, but not many examples using VBA to plot the set in Excel, so here is my effort: The spreadsheet (including open source VBA code) may be downloaded from: Mandelbrot chart.zip Note that … Continue reading
Posted in Charts, Charts, Coordinate Geometry, Drawing, Excel, Maths, Newton, VBA
Tagged Charts, Excel, Mandelbrot Set, VBA
3 Comments
Using conditional formatting with array formulas
A recent Quora question asked “How do I highlight the number closest to an initial number in a row in Excel?“. The answer by Bill Jelen provides a good example of using conditional formatting with an array formula: In my … Continue reading
Posted in Arrays, Excel
Tagged Array Formula, conditional formatting, Excel, Office Insider
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64 bit Excel and the Strand7 API
Back in May 2017 I posted a sample spreadsheet using the Strand7 API to allow Excel to read and write Strand7 node data and results. A comment noted at the time that the spreadsheet was not working with 64 bit … Continue reading
Posted in Excel, Finite Element Analysis, Frame Analysis, Link to dll, Newton, Strand7
Tagged 64 bit Excel, Strand7 API
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Newton Excel Bach, not (just) an Excel Blog 