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Questions on the manipulation of matrices in Mathematica.

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independent rows. Then just choose corresponding rows from matrix A. A[[Flatten@pos, All]] {{0, 1, -1, 0, 0}, {1, 0, 1, 0, -1}, {1, 1, 1, -1, -1}, {-1, -1, -1, 1, 0}, {0, -1, 0, -1, -1}} …
answered Nov 17 '18 by Aleksandr K