A road to injustice
How "be nice" policies bring us to the tyranny of nonsense.
Monday, July 4, 2011
(Ax)[k] = (A[k]) x
(Ax)[k] is a k-th element of a vector y = Ax. It happens to be equal to A[k]x, the k-th row of А times x, because that is the meaning of y[k].
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