math

This module is always available. It provides access to the mathematical functions defined by the C standard.

Functions

acos(x) Return the arc cosine (measured in radians) of x.
acosh(x) Return the inverse hyperbolic cosine of x.
asin(x) Return the arc sine (measured in radians) of x.
asinh(x) Return the inverse hyperbolic sine of x.
atan(x) Return the arc tangent (measured in radians) of x.
atan2(y, x) Return the arc tangent (measured in radians) of y/x.
atanh(x) Return the inverse hyperbolic tangent of x.
ceil(x) Return the ceiling of x as a float.
copysign(x, y) Return x with the sign of y.
cos(x) Return the cosine of x (measured in radians).
cosh(x) Return the hyperbolic cosine of x.
degrees(x) Convert angle x from radians to degrees.
erf(x) Error function at x.
erfc(x) Complementary error function at x.
exp(x) Return e raised to the power of x.
expm1(x) Return exp(x)-1.
fabs(x) Return the absolute value of the float x.
factorial((x) -> Integral) Find x!.
floor(x) Return the floor of x as a float.
fmod(x, y) Return fmod(x, y), according to platform C.
frexp(x) Return the mantissa and exponent of x, as pair (m, e).
fsum(iterable) Return an accurate floating point sum of values in the iterable.
gamma(x) Gamma function at x.
hypot(x, y) Return the Euclidean distance, sqrt(x*x + y*y).
isinf((x) -> bool) Check if float x is infinite (positive or negative).
isnan((x) -> bool) Check if float x is not a number (NaN).
ldexp(x, i) Return x * (2**i).
lgamma(x) Natural logarithm of absolute value of Gamma function at x.
log(x[, base]) Return the logarithm of x to the given base.
log10(x) Return the base 10 logarithm of x.
log1p(x) Return the natural logarithm of 1+x (base e).
modf(x) Return the fractional and integer parts of x.
pow(x, y) Return x**y (x to the power of y).
radians(x) Convert angle x from degrees to radians.
sin(x) Return the sine of x (measured in radians).
sinh(x) Return the hyperbolic sine of x.
sqrt(x) Return the square root of x.
tan(x) Return the tangent of x (measured in radians).
tanh(x) Return the hyperbolic tangent of x.
trunc((x:Real) -> Integral) Truncates x to the nearest Integral toward 0.