Python 3.6+cmathterm

cmath.infj

constants

A complex number with a zero real part and an infinite imaginary part, complex(0.0, inf).

Syntax

cmath.infj

Arithmetic with infinities in complex numbers produces NaN unexpectedly: infj * 1j gives (-inf+nanj), not just -inf, because the multiplication also computes the term 0·inf. Check such values with cmath.isinf and isnan before computing with them.

Examples

import cmath
print(cmath.infj, cmath.infj.real)  # → infj 0.0
print(cmath.infj * 1j)  # → (-inf+nanj)

See also

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