Re: Really big numbers

[Chuck Lewis <clewis@xxxxxxxxxx>]

You just WON'T leave me alone, will you Dale... <VBG>

Chuck

D.BALE@handleman.com wrote:

> >> a number greater than 170!
>
> >Dan I believe he is speaking of the mathematical expression (170!)
> >which translates into 170 * 169 * 168 * 167 ... * 1. This is used
> >quite often in operations research and combinatorial evaluations.
>
> Gee, I thought he was pulling a Chuck Lewis! ! ! <gd&r>
>
> <sigh> I _really_ did know about, um, what do they call those expressions with
> the exclamation point after the number?  No matter, but I've never seen a use
> for them in a business application system and, so, I didn't recognize the 170!
> as an expression.
>
> What about the Java BigDecimal?  How big is it, really?
>
> Dan Bale
> IT - AS/400
> Handleman Company
> 248-362-4400  Ext. 4952
>
> -------------------------- Original Message --------------------------
> Hello D,
>
> Friday, January 05, 2001, 6:10:00 AM, you wrote:
>
> > a number greater than 170?  How about a 3-digit field?  ;-)
>
> > What?  You work for Microsoft?  170 digits?  Trying to set the world record
> > for largest prime number?
>
> >>2,147,483,647 digits
>
> > Um, is this a typo?  How would one even begin to store a number that large?
> > That's a one-record, one-field, 2 gigabytes file.  Oh, is it packed?  Sorry,
> > just 1 GB.
>
> > Dan Bale
> > IT - AS/400
> > Handleman Company
> > 248-362-4400  Ext. 4952
>
> > -------------------------- Original Message --------------------------
> > B,
>
> > Thanks for the suggestion.  Until I read the Class documentation I did
> > not realize that BigDecimal can go up to 2,147,483,647 digits.  That
>  probably
> > fits the problem better than another suggestion to use REX, which works
> > fine, but Java is a much more acceptable solution.  I was amazed at how
> > fast REX is so I won't rule it out.
>
> > David Morris
>
> >>>> bbrosch@stecnet.com 01/04/01 01:55PM >>>
> > BigDeimal in Java.   :)
>
> > -----Original Message-----
> > From: David Morris [mailto:dmorris@plumcreek.com]
> > Sent: Thursday, January 04, 2001 2:23 PM
> > To: RPG400-L@midrange.com
> > Subject: Really big numbers
>
> > Math enabled RPGIV'ers,
>
> > What are some of the options for storing and manipulating
> > very large numbers where long float is just not large enough?
> > In this case to use a number greater than 170!.
>
> > Thanks,
>
> > David Morris
>
> Dan I believe he is speaking of the mathematical expression (170!)
> which translates into 170 * 169 * 168 * 167 ... * 1. This is used
> quite often in operations research and combinatorial evaluations.
>
> ----------------------------------
> Eric N. Wilson
> President
> Doulos Software and Computer Services
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