Category Archives: Computing – general

New GROUPBY and PIVOTBY functions

Posted on 14/01/2024 by dougaj4

Microsoft recently announced two new functions that provide similar functionality to pivot tables, but will update automatically for any change in the referenced data. These functions are currently rolling out to users enrolled in the beta channel for Windows Excel and Mac Excel. … Continue reading →

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Early Analog Computers

Posted on 05/12/2023 by dougaj4

We tend to think of computers as having been developed starting in the years after the second world war, but in the late 19th and early 20th centuries the focus was on analog computers, which were seen as being the … Continue reading →

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EngineeringPaper.xyz

Posted on 12/06/2023 by dougaj4

EngineeringPaper.xyz is a web app for engineering applications with free open-source code: EngineeringPaper.xyz is a web app for engineering calculations that handles unit conversion/checking automatically and also supports plotting, solving systems of equations, and documenting your calculations (see the official blog for … Continue reading →

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Indexing pdf files – update

Posted on 18/04/2023 by dougaj4

My Windows search function recently once again stopped indexing pdf files, probably associated with an upgrade to Windows 11. Previously this was fixed by downloading the file PDFFilter64Setup.msi from the Adobe site, but that download no longer works, and there … Continue reading →

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Downloads update

Posted on 19/03/2023 by dougaj4

A list of files available for free download can be found under the Downloads link at the top of the page: The list has now been updated and there are now 189 files available for download, most with open source … Continue reading →

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