?? qr-3.m
字號:
a = [0, 2; 2, 1; 1, 2];[q, r] = qr (a);[qe, re] = qr (a, 0);(size (q) == [3, 3] && size (r) == [3, 2] && abs (a - q * r) < sqrt (eps) && size (qe) == [3, 2] && size (re) == [2, 2] && abs (a - qe * re) < sqrt (eps))?? 快捷鍵說明
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