“error function”的概念、定义、翻译、参考文献-科学参考

单词	error function
释义	error function Mathematics The error function erf(x) is a special function defined as $erf (x) = \frac{2}{\sqrt{π}} \int_{0}^{x} e^{- t^{2}} d t .$ If Φ‎(x) denotes the cumulative distribution function of the nomal distribution N(0,1), then $erf (x) = 2 Φ (x \sqrt{2}) - 1.$ Statistics See normal distribution.
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