docs/library/math.rst
math -- mathematical functions.. module:: math :synopsis: mathematical functions
|see_cpython_module| :mod:python:math.
The math module provides some basic mathematical functions for
working with floating-point numbers.
Note: On the pyboard, floating-point numbers have 32-bit precision.
Availability: not available on WiPy. Floating point support required for this module.
.. function:: acos(x)
Return the inverse cosine of x.
.. function:: acosh(x)
Return the inverse hyperbolic cosine of x.
.. function:: asin(x)
Return the inverse sine of x.
.. function:: asinh(x)
Return the inverse hyperbolic sine of x.
.. function:: atan(x)
Return the inverse tangent of x.
.. function:: atan2(y, x)
Return the principal value of the inverse tangent of y/x.
.. function:: atanh(x)
Return the inverse hyperbolic tangent of x.
.. function:: ceil(x)
Return an integer, being x rounded towards positive infinity.
.. function:: copysign(x, y)
Return x with the sign of y.
.. function:: cos(x)
Return the cosine of x.
.. function:: cosh(x)
Return the hyperbolic cosine of x.
.. function:: degrees(x)
Return radians x converted to degrees.
.. function:: erf(x)
Return the error function of x.
.. function:: erfc(x)
Return the complementary error function of x.
.. function:: exp(x)
Return the exponential of x.
.. function:: expm1(x)
Return exp(x) - 1.
.. function:: fabs(x)
Return the absolute value of x.
.. function:: floor(x)
Return an integer, being x rounded towards negative infinity.
.. function:: fmod(x, y)
Return the remainder of x/y.
.. function:: frexp(x)
Decomposes a floating-point number into its mantissa and exponent.
The returned value is the tuple (m, e) such that x == m * 2**e
exactly. If x == 0 then the function returns (0.0, 0), otherwise
the relation 0.5 <= abs(m) < 1 holds.
.. function:: gamma(x)
Return the gamma function of x.
.. function:: isfinite(x)
Return True if x is finite.
.. function:: isinf(x)
Return True if x is infinite.
.. function:: isnan(x)
Return True if x is not-a-number
.. function:: ldexp(x, exp)
Return x * (2**exp).
.. function:: lgamma(x)
Return the natural logarithm of the gamma function of x.
.. function:: log(x) log(x, base)
With one argument, return the natural logarithm of x.
With two arguments, return the logarithm of x to the given base.
.. function:: log10(x)
Return the base-10 logarithm of x.
.. function:: log2(x)
Return the base-2 logarithm of x.
.. function:: modf(x)
Return a tuple of two floats, being the fractional and integral parts of
x. Both return values have the same sign as x.
.. function:: pow(x, y)
Returns x to the power of y.
.. function:: radians(x)
Return degrees x converted to radians.
.. function:: sin(x)
Return the sine of x.
.. function:: sinh(x)
Return the hyperbolic sine of x.
.. function:: sqrt(x)
Return the square root of x.
.. function:: tan(x)
Return the tangent of x.
.. function:: tanh(x)
Return the hyperbolic tangent of x.
.. function:: trunc(x)
Return an integer, being x rounded towards 0.
.. data:: e
base of the natural logarithm
.. data:: pi
the ratio of a circle's circumference to its diameter