Method code for $math.ident_mat()

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arg n;
var x, y;

return map x in [1 .. n] to (map y in [1 .. n] to (x == y ? 1.0 : 0.0));

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["// Various Contributors, including: Miroslav Silovic, Bruce Mitchner, Nolan, Sean R. Lynch, Technobunny", "// Created 19-Oct-1996 as a part of ColdCore, see: @help Credit"]