Using math

https://docs.python.org/3/library/math.html

INTRODUCTION

This module provides access to the mathematical functions defined by the C standard.

Complex number versions of many functions are in the 'cmath' module.

import math

# Number-theoretic and representation functions

# math.ceil(x) - the smallest integer value greater than or equal to x.
# math.floor(x) - the largest integer value less than or equal to x.
# math.trunc(x) - return int 
# ceil() and floor() return float in Py2 and int in Py3

# math.comb(n, k) - evaluates to n! / (k! * (n - k)!) (Py3.8)
# math.perm(n, k=None) - evaluates to n! / (n - k)! when k <= n (Py3.8)
# math.prod(iterable, *, start=1) - the product of all the elements in iterable (Py3.8)

# math.fabs(x)
# math.fsum(iterable) - more accurate then sum(iterable)
# math.factorial(x)
# math.gcd(x, y) - the greatest common divisor
# math.lcm(x, y) - the least common multiple

# math.isfinite(x)
# math.isinf(x)
# math.isnan(x)

# Power and logarithmic functions

# math.exp(x) - more accurate then math.e ** x
# math.expm1(x) - more accurate then math.exp(x)-1
# math.log(x) - the natural logarithm ln(x)
# math.log(x, base) -  math.log(x)/math.log(base)
# math.log1p(x) - more accurate then math.log(1 + x)
# math.log2(x) - more accurate then math.log(x, 2)
# math.log10(x) - more accurate then math.log(x, 10)
# math.pow(x, y) - returns x ** y, converts both arguments to float
# math.sqrt(x) - the square root of x

# Trigonometric and hyperbolic functions

# math.sin(x), math.cos(x), math.tan(x),
# math.asin(x), math.acos(x), math.atan(x),
# math.sinh(x), math.cosh(x), math.tanh(x),
# math.asinh(x), math.acosh(x), math.atanh(x)
# math.atan2(y, x) - return atan(y / x) in radians [correct quadrant]
# math.hypot(x, y) - return math.sqrt(x*x + y*y)

# Special functions

# math.erf(x) - the error function
# math.erfc(x) - the complementary error function
# math.gamma(x) - the Gamma function
# math.lgamma(x) - the natural log of the Gamma function

# Constants

# math.pi - 3.141592... stała matematyczna
# math.e - 2.718281...
# math.tau - 2 * math.pi
# math.inf - float('inf'), a floating-point positive infinity
# math.nan - float('nan'), a floating-point 'not a number' (NaN) value