math3erl
Mathematical functions.
Overview
This module provides an interface to a number of mathematical functions.
Note:
Not all functions are provided on all platforms. In particular, the erf/1 and erfc/1 functions are not provided on Windows.
Exports
acos(X) -> float() acosh(X) -> float() asin(X) -> float() asinh(X) -> float() atan(X) -> float() atan2(Y, X) -> float() atanh(X) -> float() ceil(X) -> float() cos(X) -> float() cosh(X) -> float() exp(X) -> float() floor(X) -> float() fmod(X, Y) -> float() log(X) -> float() log10(X) -> float() log2(X) -> float() pow(X, Y) -> float() sin(X) -> float() sinh(X) -> float() sqrt(X) -> float() tan(X) -> float() tanh(X) -> float()
Types:
Y = X = number()
A collection of mathematical functions that return floats. Arguments are numbers.
erf(X) -> float()
Types:
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()
Types:
X = number()
erfc(X) returns 1.0 - erf(X), computed by methods that avoid cancellation for large X.
pi() -> float()
A useful number.
Limitations
As these are the C library, the same limitations apply.
Releases
10 releases since Debian 3.1 (Sarge); the text changed 9 times.