math
Mathematical Functions
This module provides an interface to a number of mathematical functions.
Note!
Not all functions are implemented on all platforms. In particular,
the erf/1 and erfc/1 functions are not implemented on Windows.
Functions
pi() -> float()
A useful number.
sin(X) -> float()
X = number()
cos(X) -> float()
X = number()
tan(X) -> float()
X = number()
asin(X) -> float()
X = number()
acos(X) -> float()
X = number()
atan(X) -> float()
X = number()
atan2(Y, X) -> float()
Y = X = number()
sinh(X) -> float()
X = number()
cosh(X) -> float()
X = number()
tanh(X) -> float()
X = number()
asinh(X) -> float()
X = number()
acosh(X) -> float()
X = number()
atanh(X) -> float()
X = number()
exp(X) -> float()
X = number()
log(X) -> float()
X = number()
log2(X) -> float()
X = number()
log10(X) -> float()
X = number()
pow(X, Y) -> float()
X = Y = number()
sqrt(X) -> float()
X = number()
A collection of math functions which return floats. Arguments are numbers.
erf(X) -> float()
X = number()
Returns the error function of
erf(X) = 2/sqrt(pi)*integral from 0 to X of exp(-t*t) dt.
erfc(X) -> float()
X = number()
erfc(X) returns 1.0 - erf(X), computed by
methods that avoid cancellation for large
Bugs
As these are the C library, the bugs are the same.