From: Geert Fannes <Geert.Fannes@...>
Date: 2005-04-04T20:48:07+09:00
Subject: Math.sqrt(NaN) behaves differently on windows and linux

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Hello, the following statement gives different results on windows and
linux:

=20

Linux:

irb(main):003:0> Math.sqrt(0.0/0.0)

*     NaN

=20

=20

Windows:

irb(main):002:0> Math.sqrt(0.0/0.0)

Errno::EDOM: Domain error - sqrt

        from (irb):2:in `sqrt'

        from (irb):2

=20

I guess this is not as it should be. Which is the correct way to handle
NaNs?

How can I generate NaN without using the trick 0.0/0.0. Why does 0/0
give a ZeroDivisionError and 0.0/0.0 a NaN

=20

Greetings,

Geert Fannes.


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