Ruby Float nan?() method with example

Float nan?() is a float class method that checks whether the value is ‘not a number’. ‘Not A Number’ means an invalid IEEE floating-point number.

Syntax: float.nan?()
Parameter: float value to be passed
Return: Return true – if the value is ‘not a number’ otherwise return false

Example #1:

Ruby

# Ruby program for nan?() method

# Initializing value
a = 0.0
b = 0.0.modulo(4.0)

# Printing result
puts "a is not_a_number : #{a.nan?}\n\n"
puts "b is not_a_number : #{b.nan?}\n\n"

Output :

a is not_a_number : false

b is not_a_number : false

Example #2:

Ruby

# Ruby program for nan?() method

# Initializing value
a = 26.00
b = 8.0

# Printing Result
puts "a is not_a_number : #{a.nan?}\n\n"
puts "b is not_a_number : #{b.nan?}\n\n"

Output :

a is not_a_number : false

b is not_a_number : false

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