From: WATANABE Hirofumi <eban@...>
Date: 2002-05-30T13:09:28+09:00
Subject: Re: Infinity (?!)

Hi,

Phil Tomson <ptkwt@shell1.aracnet.com> writes:

:So, my question is, how can you determine if a variable contains Infinity:
:
:irb(main):011:0* puts "To Infinity and beyond" if x == Infinity
:NameError: uninitialized constant Infinity
:        from (irb):11
:irb(main):012:0>
:
:Anyway to do that?

irb(main):001:0> x = 2.0/0.0
Infinity
irb(main):002:0> y = -2.0/0.0
-Infinity
irb(main):003:0> [x.infinite?, y.infinite?]
[1, -1]

-- 
eban