:mod:`math` --- mathematical functions
======================================

.. module:: math
   :synopsis: mathematical functions

The ``math`` module provides some basic mathematical funtions for
working with floating-point numbers.


Functions
---------

.. function:: acos(x)


.. function:: acosh(x)


.. function:: asin(x)


.. function:: asinh(x)


.. function:: atan(x)


.. function:: atan2(y, x)


.. function:: atanh(x)


.. function:: ceil(x)


.. function:: copysign(x, y)


.. function:: cos(x)


.. function:: cosh(x)


.. function:: degrees(x)


.. function:: erf(x)

   Return the error function of ``x``.

.. function:: erfc(x)

   Return the complementary error function of ``x``.

.. function:: exp(x)


.. function:: expm1(x)


.. function:: fabs(x)


.. function:: floor(x)


.. function:: fmod(x, y)


.. function:: frexp(x)

   Converts a floating-point number to fractional and integral components.

.. function:: gamma(x)

   Return the gamma function of ``x``.

.. function:: isfinite(x)


.. function:: isinf(x)


.. function:: isnan(x)


.. function:: ldexp(x, exp)


.. function:: lgamma(x)

   return the natural logarithm of the gamma function of ``x``.

.. function:: log(x)


.. function:: log10(x)


.. function:: log2(x)


.. function:: modf(x)


.. function:: pow(x, y)

   Returns ``x`` to the power of ``y``.

.. function:: radians(x)


.. function:: sin(x)


.. function:: sinh(x)


.. function:: sqrt(x)

   Returns the square root of ``x``.

.. function:: tan(x)


.. function:: tanh(x)


.. function:: trunc(x)



Constants
---------

.. data:: e

   base of the natural logarithm

.. data:: pi

   the ratio of a circle's circumference to its diameter