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词汇 Flat Function
分类 英语词汇 英语翻译词典
释义

Flat Function

英语百科

Flat function

The function y = e−1/x2 is flat at x = 0.

In mathematics, especially real analysis, a flat function is a smooth function ƒ :   ℝ all of whose derivatives vanish at a given point x0  ℝ. The flat functions are, in some sense, the antitheses of the analytic functions. An analytic function ƒ :   ℝ is given by a convergent power series close to some point x0  ℝ:

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