This module provides the usual basic transcendental
mathematical functions. All trig functions use angles in
radians. (For a similar set of functions using the complex
number system, see the
Python library documentation for the cmath
module.)
The math
module has two constant
attributes:
pi  The constant 3.14159... 
e  The base of natural logarithms, 2.71828... 
Functions in this module include:
acos(

Angle (in radians) whose cosine is , that is,
arccosine of .

acosh(

Inverse hyperbolic cosine of

asin(

Arcsine of .

asinh(

Inverse hyperbolic sine of

atan(

Arctangent of .

atanh(

Inverse hyperbolic tangent of

atan2( 
Angle whose slope is
, even if
is zero.

ceil(

True ceiling function, defined as the smallest
integer that is greater than or equal to . For
example, ceil(3.9) yields 4.0,
while ceil(3.9) yields 3.0.

cos(

Cosine of , where is expressed in
radians.

cosh(

Hyperbolic cosine of .

degrees(

For
in radians, returns that angle in degrees.

erf(
 Error function. 
erfc(
 Error function complement. 
exp(

e to the power.

fabs(

Returns the absolute value of as a float value.

factorial(

Returns the factorial of , which must be a
nonnegative integer.

floor(

True floor function, defined as the largest
integer that is less than or equal to . For
example, floor(3.9) is 3.0, and
floor(3.9) is 4.0.

fmod(

Returns ( .

frexp(

For a float value , returns a tuple ( where is the
mantissa and is the exponent. For , it
returns (0.0, 0) ; otherwise, abs( is a
float in the halfopen interval [0.5, 1) and
is
an integer, such that x == m*2**e .

gamma(
 Gamma function. 
hypot(

The square root of ( ^{2}+ ^{2}).

ldexp(

Returns .
This is the inverse of frexp() .

lgamma(

Natural log of abs(gamma( .

log(

With one argument, returns the natural log of
.
With the second argument, returns the log of
to
the base .

log10(

Common log (base 10) of .

modf(

Returns a tuple ( where
is the
fractional part of , is the integral part (as a
float), and both have the same sign as .

radians(

For
in degrees, returns that angle in radians.

sin(

Sine of .

sinh(

Hyperbolic sine of .

sqrt(

Square root of .

tan(

Tangent of .

tanh(

Hyperbolic tangent of .
