[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

*To*: seul-edu@seul.org*Subject*: yacas Re: [seul-edu] [no longer OT] summation of 1/2x*From*: rnd@sampo.karelia.ru*Date*: Thu, 6 Apr 2000 20:18:18 +0400 (MSD)*Delivery-Date*: Thu, 06 Apr 2000 12:15:41 -0400*In-Reply-To*: <2.2.32.20000405185454.009ae1b8@[192.168.1.23]>*Reply-To*: seul-edu@seul.org*Sender*: owner-seul-edu@seul.org

On Wed, 5 Apr 2000, Ray Olszewski wrote: >With (1/2)^n, the number of significant (decimal or binary) digits in the >fraction increases by 1 with every step in n -- here too, you'll run into >rounding problems very fast. Here too, depending on how a language handles >rounding and underflow, the series may or may not asymptotically approach 1 >or 2 (depending on if n starts as 1 or 0). > >So ... does anyone know if ANY of the languages we've collectively suggested >handles these problems well? I do know that perl has BigInt and BigFloat >packages that are said to handle arbitrarily-large precision. I've actually >used BigInt, and (except for speed) it works fine with 100+ digit integers. >I haven't used BigFloat. Take a look at yacas: Name : yacas Relocations: (not relocateable) Version : 1.0.28 Vendor: (none) Release : 1 Build Date: Sat Feb 12 15:35:06 2000Install date: Sat Feb 12 16:07:24 2000 Build Host: rsuzi.pgu.karelia.ru Group : Applications/Math Source RPM: yacas-1.0.28-1.src.rpm Size : 822431 License: LGPL URL : http://www.xs4all.nl/~apinkus/yacas.html Summary : Yet Another Computer Algebra System Description : Yacas (Yet Another Computer Algebra System) is a small and highly flexible computer algebra language. The syntax uses a infix-operator grammar parser. The distribution contains a small library of mathematical functions, but its real strength is in the language in which you can easily write your own symbolic manipulation algorithms. It supports arbitrary precision arithmetic. Sincerely yours, Roman Suzi -- Russia * Karelia * Petrozavodsk * rnd@rsuzi.pgu.karelia.ru * Thursday, April 06, 2000 * Powered by Linux RedHat 6.0 * "The first myth of management is that it exists."

**References**:**Re: [seul-edu] [no longer OT] summation of 1/2x***From:*Ray Olszewski <ray@comarre.com>

- Prev by Date:
**Re: [seul-edu] Teaching Language Software** - Next by Date:
**Re: [seul-edu] Long, long ago...** - Prev by thread:
**Re: [seul-edu] [no longer OT] summation of 1/2x** - Next by thread:
**Re: [seul-edu] [no longer OT] summation of 1/2x** - Index(es):