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|Home MathPack Statis Functions Erf
|See also: IncompleteGamma, ErfApprox
The function Erf returns the error function (which is a special case of the incomplete gamma function). The error function is defined as follows:
Typical application of the error function: when the results of a series of measurements are described by a normal distribution with a standard deviation sigma and an expected value of zero, then
erf (a*sqrt(2)/2/sigma))returns the probability that the error of a single measurement lies between -a and +a.