module usage
module usage
random.random()
random.randint()
random.choice()
Choosing random item(s)
random.choices()
random.sample()
random.shuffle()
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))