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Postings from October 2002
Re: Indeterminate math
From:
mosullivan@crtinc.com
Date:
October 14, 2002 17:20
Subject:
Re: Indeterminate math
Message ID:
187160-220021021502036468@M2W066.mail2web.com
From: Mark J. Reed mark.reed@turner.com
> Summary of values:
>
> 1/0 +Inf
> -1/0 -Inf
> 0/0 NaN
> Inf/0 NaN
> Inf/Inf NaN
Are Inf and NaN going to be standard in Perl 6? As long as we're traveling
down that road, how about i (the square root of -1), or Lukasiwiscean Null?
(Sorry if I sound sarcastic, I'm actually honestly curious.)
My inner Larry Wall is right now saying that there needs to be a more
generalized solution to all this. OK, here's one. By default, anything/0
throws an exception. However, you can load modules to handle those
exceptions, substituting Inf, NaN, or whatever as the evaluation of the
expression.
-Miko
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