【實用工具app】Square Matrix Calculator|最夯免費app

Simple tool useful to calculate determinant, rank and the inverse of the most common square matrix.This version support 2x2, 3x3 and 4x4 matrix size (the most used at school and university)Negative Numbers?Unfortunately there is no a keyboard that support the minus sign, so i created a button called " - " that would create a minus in the first blank cell of the matrix, following the matrix scheme, from cell [1;1] to [1;2]...[2;1], [2;2] and so on.

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