Absolute value and sign : float « Number « Ruby

Absolute value and sign



puts -2.0.abs     # => 2.0: absolute value

puts -2.0<=>0.0   # => -1: use <=> operator to compute sign of a number

Related examples in the same category

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2.	Check whether a number is finite or infinite with the finite? and infinite?
3.	Check whether a floating-point value is a number at all with Float's nan?
4.	ArgumentError: invalid value for Float(): "99.44% pure"
5.	Float value step
6.	Float predicates
7.	Class constants
8.	Rounding methods
9.	Constants in Float
10.	Round a float
11.	round Rounds to the nearest integer.

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