max0011167 开发者_JAVA技巧 2021-09-20 12:35 我是昨天第一天吃，然后掉了2.8斤，晚上两片，我130斤
If I have this: A * f = g; A: upper triangular matrix (n x n) f: (n x 1) g: (n x 1) Need to solve for f using back substitution algorithm. I would say that it not really that开发者_开发知识库 hard
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