Re: Ask for recommended module for precise number

Tom wrote: 
Hi Affijn,

Thanks for pointing the reference. In fact I have browsed those modules
before as well.


In that case, you really need to read:

http://www.catb.org/~esr/faqs/smart-questions.html

However, what I am handling is something like 1e-10000 which is much
smaller than a double can represent.

What does double have to do with Math::BigFloat? Did you really read the CPAN entries?

Sometimes I have to use the log
value but sometimes I need to use the real value (e.g., cross entropy).

Or, may I make something wrong where in fact Math:BigFloat is able to
handle those issue as well? Thanks in advance.

A casual glance at the pages says "it should work". If you can demonstrate that it doesn't, then you should have said so in your original question and maybe you should think about fixing the problem.

--
Jonathan Leffler                   #include <disclaimer.h>
Email: jleffler@xxxxxxxxxxxxx, jleffler@xxxxxxxxxx
Guardian of DBD::Informix v2005.02 -- http://dbi.perl.org/
.

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