Is it possible to set an element of an array to
NaN in Python?
Additionally, is it possible to set a variable to +/- infinity? If so, is there any function to check whether a number is infinity or not?
Cast from string using
>>> float('NaN') nan >>> float('Inf') inf >>> -float('Inf') -inf >>> float('Inf') == float('Inf') True >>> float('Inf') == 1 False