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nan?

flt.nan? â true or false

Instance Public methods

Returns true if flt is an invalid IEEE floating point number.

a = -1.0      #=> -1.0
a.nan?        #=> false
a = 0.0/0.0   #=> NaN
a.nan?        #=> true

doc_ruby_on_rails

2015-04-07 02:54:42

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