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math Mathematical Functions

This module provides an interface to a number of mathematical functions.

Not all functions are implemented on all platforms. In particular, the erf/1 and erfc/1 functions are not implemented on Windows.

 A useful number

A useful number.

 Diverse math functions

A collection of math functions which return floats. Arguments are numbers.

Error function.

Returns the error function of X, where

erf(X) = 2/sqrt(pi)*integral from 0 to X of exp(-t*t) dt.
Another error function

erfc(X) returns 1.0 - erf(X), computed by methods that avoid cancellation for large X.

Bugs

As these are the C library, the bugs are the same.