Computer display size calculator

Surprisingly, could not find quick tool to compare various screen sizes and resolutions. It is useful to understand why a modern 14 inch display (with 16:9 ratio) is almost a centimeter shorter vertically than older 12 inch (with 4:3 ratio).   So here it is: Diagonal inches or select 13.31415.62023242627282930 Resolution x or select 1024×768…

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PowerPivot beginner journey 3

PowerPivot lesson #3 – if the data can’t be refreshed, it should be in Excel, or copied to PowerPivot. I added zip code data from CSV file by loading to PowerPivot, and discarded the CSV since I did not plan to update it. Bad idea. PowerPivot wants to update all data when you do Refresh…

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PowerPivot beginner journey 2

I was exploring the data, and found lots of interesting info from my data set. But I could not find how to join some tables in PowerPivot, and after looking at the source data – it turned out my source data used GUID columns, stored as binary, for row IDs – and PowerPivot silently hid it. I would expect it at least…

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Undocumented PowerPivot installation requirement

Trying to use PowerPivot, just found undocumented PowerPivot installation requirement: Excel .NET Programmability Support. If PowerPivot silently fails to load, and in Event Viewer you’ve got an event like below, run Office Setup / Add or Remove Features, then check .NET Programmability Support under Microsoft Excel. Here is the event you might find in event…

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