Sfun.ErfInverse Method

Returns the inverse of the error function.

public static double ErfInverse(
double x
);

Parameters

x: A double value.

Return Value

A double value specifying the inverse of the error function of x.

Remarks

ErfInverse(X) method computes the inverse of the error function erf x, defined in Erf.

The method ErfInverse(X) is defined for $x_{\it max} \lt \left| x \right| \lt 1$ , then the answer will be less accurate than half precision. Very approximately,

$x_{\max } \approx 1 - \sqrt {\varepsilon /\left( {4\pi } \right)}$

where $\varepsilon$ is the machine precision (approximately 1.11e-16).

$Plot of Erfinverse(x)$

Sfun.ErfInverse Method

Parameters

Return Value

Remarks

See Also