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设函数f在U(a,n)有定义,在a点可导,则根据无穷小增量公式,存在一次多项式 A0+A1(x-a) (A0=f(a), A1=f'(a)) 使得 f(x)=A0+A1(x-a)+o(x-a) 如果f在a点n次可导,那么: 0-能否有n次多项式 P(x)= 1-这样的n次多项式能有几个 张筑生老师 阅读全文
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http://www.math.pitt.edu/~xfc/math2370/chap5.pdf 阅读全文
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http://math.wallawalla.edu/~duncjo/courses/math113/winter08/notes/9-1_math113.pdf Name What Changes What Doesn’t Translation Position Size, Shape, Ori 阅读全文
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http://mathworld.wolfram.com/CongruentMatrices.html Two square matrices and are called congruent if there exists a nonsingular matrix such that where 阅读全文