= Python CMath =

'''`cmath`''' is a module that support math with [[Python/Builtins/Types#Complex|complex numbers]].

<<TableOfContents>>

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== Functions ==

||'''Function'''||'''Meaning'''                                                  ||'''Example'''  ||
||`acos`        ||arc cosine                                                     ||`acos(a)`      ||
||`acosh`       ||hyperbolic arc cosine                                          ||`acosh(a)`     ||
||`asin`        ||arc sine                                                       ||`asin(a)`      ||
||`asinh`       ||hyperbolic arch sine                                           ||`asinh(a)`     ||
||`atan`        ||arc tangent                                                    ||`atan(a)`      ||
||`atanh`       ||hyperbolic arc tangent                                         ||`atanh(a)`     ||
||`cos`         ||cosine                                                         ||`cos(a)`       ||
||`cosh`        ||hyperbolic cosine                                              ||`cosh(a)`      ||
||`exp`         ||''e'' to the power of a complex number                         ||`exp(a)`       ||
||`isclose`     ||tests if two complex numbers are close                         ||`isclose(a, b)`||
||`isfinite`    ||tests if all parts of a complex number are finite              ||`isfinite(a)`  ||
||`isinf`       ||tests if any part of a complex number is infinite              ||`isinf(a)`     ||
||`isnan`       ||tests if any part of a complex number is NaN                   ||`isnan(a)`     ||
||`log`         ||logarithm (natural logarithm if base unspecified)              ||`log(a, base)` ||
||`log10`       ||base-10 logarithm                                              ||`log10(a)`     ||
||`phase`       ||phase of a complex number                                      ||`phase(a)`     ||
||`polar`       ||translate a complex number into polar coordinates `(r, phi, )` ||`polar(a)`     ||
||`rect`        ||translate polar coordinates `r` and `phi` into a complex number||`rect(r, phi)` ||
||`sin`         ||sine                                                           ||`sin(a)`       ||
||`sinh`        ||hyperbolic sine                                                ||`sinh(a)`      ||
||`sqrt`        ||square root                                                    ||`sqrt(a)`      ||
||`tan`         ||tangent                                                        ||`tan(a)`       ||
||`tanh`        ||hyperbolic tangent                                             ||`tanh(a)`      ||

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== Constants ==

||'''Name'''  ||'''Value'''                                             ||
||`cmath.pi`  ||π as a float                                            ||
||`cmath.e`   ||e as a float                                            ||
||`cmath.tau` ||τ as a float                                            ||
||`cmath.inf` ||floating-point positive infinity; same as `float('inf')`||
||`cmath.infj`||`complex(0.0, float('inf'))`                            ||
||`cmath.nan` ||floating-point not a number; same as `float('nan')`     ||
||`cmath.nanj`||`complex(0.0, float('nan'))`                            ||

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== See also ==

[[https://docs.python.org/3/library/cmath.html|Python cmath module documentation]]



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