Modern Math NaN

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NaN

Returns a Double that is NaN, not a number.

Syntax

NaN( )

Examples

#import "std/numeric"
using numeric

dim as float64 n = NaN( )

print IsNaN( n )             '' true

'' It POISONS everything downstream, which is what makes it a useful
'' sentinel and a dangerous one
print IsNaN( n + 1 )         '' true
print IsNaN( n * 0 )         '' true

'' NaNF is the single-precision one

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Library: Math Library
Category: Math Library
Documented under: Nothing Becomes A Keyword