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Re: [FWP] Math::Expression
- To: Jeff Pinyan <jeffp@crusoe.net>
- Subject: Re: [FWP] Math::Expression
- From: Chip Turner <chip@zfx.com>
- Date: 01 Dec 1999 10:38:39 -0500
- Cc: fwp@technofile.org
- In-Reply-To: Jeff Pinyan's message of "Tue, 30 Nov 1999 22:36:42 -0500 (EST)"
- References: <Pine.GSO.4.10.9911302236040.6630-100000@crusoe.crusoe.net>
Jeff Pinyan <jeffp@crusoe.net> writes:
> Interested in seeing the power of a new Perl module?
>
> http://www.crusoe.net/~jeffp/tmp/math-exp-test.cgi
>
> It can take the derivative of ANY arbitrary expression.
Some failures/oddities:
Original expression: (abs(x))
** ARRAY(0x210aec) x **
Resulting value: (abs(x)) / x
x(x) bombs out completely
Original expression: (x / (x - x))
** ARRAY(0xd04d4) ARRAY(0xcbcf8) **
Resulting value: (x - x) / ((x - x)**2)
Original expression: x**(1 / 3)
** 0 9 **
Resulting value: (1 / 3) * (x**853203)
I still prefer mathematica :)
Chip
--
Chip Turner chip@ZFx.com
Programmer, ZFx, Inc. www.zfx.com
PGP key available at wwwkeys.us.pgp.net
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