Python cmath.isfinite() Function

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math module

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math.isfinite()

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cmath.isclose()

cmath.isfinite()

cmath.isinf()

cmath.isnan()

cmath.log()

cmath.log10()

cmath.phase()

cmath.polar()

cmath.rect()

cmath.sin()

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cmath.sqrt()

cmath.tan()

cmath.tanh()

cmath.e

cmath.inf

cmath.infj

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cmath.tau

The cmath.isfinite() function returns a boolean value indicating whether the input complex number is a finite number or not.

In Python some complex values which are not finite includes Infinity, represented as complex('inf') and NaN(Not a Number) represented as complex('nan') and any operations involving them.

cmath.isfinite(x)

`x`	The value(real) or complex whose value should be checked for finiteness.

The function returns True if both the real and imaginary parts of x are finite, else False.

import cmath

print(cmath.isfinite(1 + 2j))
print(cmath.isfinite(11 + 7j))
print(cmath.isfinite(complex('inf')))
print(cmath.isfinite(complex('nan')))
print(cmath.isfinite(complex('-inf')))
print(cmath.isfinite(cmath.inf + 2j))