From: "Kurt M. Dresner" <kdresner@...>
Date: 2003-08-12T10:55:43+09:00
Subject: Re: NaN and Inifinity

I apparently was also able to paste too much of my session in here to be
relevant.  Ignore the first three irb commands.

-Kurt

On Tue, Aug 12, 2003 at 10:53:34AM +0900, Kurt M. Dresner wrote:
> I was able to do:
> 
> irb(main):012:0> a = Math::log(-1)
> => NaN
> irb(main):013:0> a.class
> => Float
> irb(main):014:0> b = "Na".to_f
> => 0.0
> irb(main):015:0> a = Math::log(-1)
> => NaN
> irb(main):016:0> a.class
> => Float
> irb(main):017:0> b = "NaN".to_f
> => NaN
> irb(main):018:0> b.class
> => Float
> irb(main):019:0> b.nan?
> => true
> 
> -Kurt
> 
> On Tue, Aug 12, 2003 at 10:38:40AM +0900, Scott Thompson wrote:
> > If I do something like
> > 
> > a = Math::log(-1)
> > 
> > then a properly takes the value NaN.
> > 
> > Is there any way to explicitly assign the variable "a" to NaN (or 
> > Inifinity or -Infinity) to begin with?  I tried finding "NaN" as a 
> > constant but couldn't locate it.  It doesn't appear to be a constant in 
> > Float or Math.
> > 
> > Scott
> > 
> > 
> >======= End of Original Message =======<
> 
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