cmath -- Mathematical functions for complex numbers.
====================================================
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.. Source: docs/stubs/cmath/__init__.pyi

.. py:module:: cmath

.. autoapi-nested-parse::

   Mathematical functions for complex numbers.

   |see_cpython_module| :mod:`python:cmath`.

   The ``cmath`` module provides some basic mathematical functions for
   working with complex numbers.

   Availability: not available on WiPy and ESP8266. Floating point support
   required for this module.



Attributes
----------

.. autoapisummary::

   cmath.e
   cmath.pi


Functions
---------

.. autoapisummary::

   cmath.cos
   cmath.exp
   cmath.log
   cmath.log10
   cmath.phase
   cmath.polar
   cmath.rect
   cmath.sin
   cmath.sqrt


Module Contents
---------------

.. py:function:: cos(z) -> float

   Return the cosine of ``z``.


.. py:function:: exp(z) -> float

   Return the exponential of ``z``.


.. py:function:: log(z) -> float

   Return the natural logarithm of ``z``.  The branch cut is along the negative real axis.


.. py:function:: log10(z) -> float

   Return the base-10 logarithm of ``z``.  The branch cut is along the negative real axis.


.. py:function:: phase(z) -> float

   Returns the phase of the number ``z``, in the range (-pi, +pi].


.. py:function:: polar(z) -> Tuple

   Returns, as a tuple, the polar form of ``z``.


.. py:function:: rect(r, phi) -> float

   Returns the complex number with modulus ``r`` and phase ``phi``.


.. py:function:: sin(z) -> float

   Return the sine of ``z``.


.. py:function:: sqrt(z) -> _typeshed.Incomplete

   Return the square-root of ``z``.


.. py:data:: e
   :type:  float

   base of the natural logarithm

.. py:data:: pi
   :type:  float

   the ratio of a circle's circumference to its diameter