fp-nan? ( x -- ? )
Factor handbook > The language > Numbers > Floats > Bitwise operations on floats

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Vocabulary
math

Inputs and outputs
xa real
?a boolean


Word description
Tests if x is an IEEE Not-a-Number value. While x can be any real number, this word will only ever yield true if x is a float.

See also
fp-special?, fp-qnan?, fp-snan?, fp-infinity?, fp-nan-payload, <fp-nan>

Definition


Methods