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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.

 pi() -> float() A useful number

A useful number.

 sin(X) cos(X) tan(X) asin(X) acos(X) atan(X) atan2(Y, X) sinh(X) cosh(X) tanh(X) asinh(X) acosh(X) atanh(X) exp(X) log(X) log10(X) pow(X, Y) sqrt(X) Diverse math functions X = Y = number()

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

erf(X) -> float() Error function. X = number()

Returns the error function of X, where

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

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.