Python cmath.cos() Function

Mathematics

fractions module

module usage

random module

module usage

random.random()

random.randint()

random.choice()

Choosing random item(s)

random.choices()

random.sample()

random.shuffle()

math module

Introduction

cmath module

math.sin()

math.cos()

math.tan()

math.asin()

math.acos()

math.atan()

math.atan2()

math.sinh()

math.cosh()

math.tanh()

math.asinh()

math.acosh()

math.atanh()

math.exp()

math.pow()

math.sqrt()

math.log()

math.log2()

math.log10()

math.ceil()

math.floor()

math.trunc()

math.modf()

math.fmod()

math.fabs()

math.factorial()

math.gcd()

math.lcm()

math.isqrt()

math.isfinite()

math.isinf()

math.isnan()

math.ldexp()

math.frexp()

math.degrees()

math.radians()

math.copysign()

math.fsum()

math.gamma()

math.hypot()

math.isclose()

math.lgamma()

math.prod()

math.perm()

math.erf()

math.erfc()

math.dist()

math.comb()

math.remainder()

math.pi

math.e

math.inf

math.nan

math.tau

cmath.acosh()

cmath.acos()

cmath.asin()

cmath.asinh()

cmath.atan()

cmath.atanh()

cmath.cos()

cmath.cosh()

cmath.exp()

cmath.isclose()

cmath.isfinite()

cmath.isinf()

cmath.isnan()

cmath.log()

cmath.log10()

cmath.phase()

cmath.polar()

cmath.rect()

cmath.sin()

cmath.sinh()

cmath.sqrt()

cmath.tan()

cmath.tanh()

cmath.e

cmath.inf

cmath.infj

cmath.nan

cmath.nanj

cmath.pi

cmath.tau

The cmath(complex math) module in the standard library provides mathematical functions for working with complex numbers. The cos() function in this module is used to find the cosine of a given complex number.

cmath.cos(x)

`x`	The angle in radians(real or complex) whose cosine should be calculated

The function returns a complex value representing the cosine of the input value, x .

import cmath

print(cmath.cos(1.5))
print(cmath.cos(2.1))
print(cmath.cos(4 + 0j))
print(cmath.cos(2 -0.25j))