matrix column matrix A A= [-3] [ 0] N=[4 -2] substract A-N
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Originally Posted by harry matrix column matrix A A= [-3] [ 0] N=[4 -2] substract A-N [-3-4 -3--2] [0-4 0--2] [-7 -1] = [-4 2] Oops, that's really unclear. In case you're wondering, they're both 2x2 matrices.
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