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keisanHigh-precision calculations for everyday life and work

Error Function (Inverse Function)

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Calculates the inverse of the error function erf -1(y) and the inverse of the complementary error function erfc -1(y).
y 
0≦y≦1
\(\normalsize Error\ function\ erf(x)\ and\\ \ complementary\ error\ function\ erfc(x)\\ (1)\ erf(x)={\large\frac{2}{\sqrt\pi}}{\large\int_{\small 0}^ {\small x}}e^{-t^2}dt\\ \hspace{25px}erfc(x)={\large\frac{2}{\sqrt\pi}}{\large\int_{\small x}^ {\small\infty}}e^{-t^2}dt\\ (2)\ erf(x)+erfc(x)=1\\\)

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