Munit function has been introduced with Excel 2013. It returns the unit matrix for the specifid dimension.
For example, you can select a1:c3 range and while selection is there, type = Munit(3), press Ctrl + Shift + Enter and after this, all 6 cells in range a1:c3, will be filled up with data as 1 in cells A1, B2,C4.
where dimension is an integer which willl act as dimension number This should be greater than 0 always.
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