题目内容

正交变化法的基本思想是通过构造正交矩阵将原问题转化为比较容易求解的最小二乘问题

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矩阵范数具有向量范数的一切性质。

Animals are proved amoral and immune to pain.

将开店目标定位为赚钱并最好能赚大钱是错误的。()

Jordan suggests that an outline for answers would be better than writing them all out.

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