Absolute value and sign : float « Number « Ruby

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Ruby » Number » float   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 1.  Floating Point Numbers 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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