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Re:Show HN: X-spreadsheet – A JavaScript canvas spreadsheet ... by selimthegrim on Monday January 28, 2019 @12:34PM (#19019294)
Wonder how much demand there will be for SUMPRODUCT
Re:Show HN: X-spreadsheet – A JavaScript canvas spreadsheet ... by codetrotter on Monday January 28, 2019 @06:54PM (#19022349)
For anyone else wondering about that formula.

https://exceljet.net/excel-functions/excel-sumproduct-functi...

All I can say is, I am grateful I don’t have to deal with other people’s spreadsheets.

My jam is programming languages and SQL, not obscure formulas and weird constructs made from surprising ways of using them.