Re[2]: Really big numbers

["Eric N. Wilson" <doulos1@xxxxxxxx>]

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
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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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