python3 pi code example

Example 1: python cmath constants

cmath.e	Returns Euler's number (2.7182...)
cmath.inf	Returns a floating-point positive infinity value
cmath.infj	Returns a complex infinity value
cmath.nan	Returns floating-point NaN (Not a Number) value
cmath.nanj	Returns coplext NaN (Not a Number) value
cmath.pi	Returns PI (3.1415...)
cmath.tau	Returns tau (6.2831...)

Example 2: ptython math constants

math.e	Returns Euler's number (2.7182...)
math.inf	Returns a floating-point positive infinity
math.nan	Returns a floating-point NaN (Not a Number) value
math.pi	Returns PI (3.1415...)
math.tau	Returns tau (6.2831...)