Re: [MATHEDCC] Computer Algebra Systems

Phil Mahler (mahlerp@admin.middlesex.cc.ma.us)
Sat, 07 Mar 1998 08:14:14 EST5EDT4,M4.1.0,M10.5.0

>Also, I have found that even very simple definite integrals can take an
>incredibly long time (on the TI-92). If you're not familiar with this
>behavior, try integrating
> x^6 - 2x^5 + x^4 + 3x^3 - 4x^2 + x - 5
> with limits of 0 and 1. About any polynomial of degree 6 or greater will
>be slow.

Interesting problem. After waiting about 2 minutes, I stopped the evaluation!

And the problem seems to stem from the interval. Doing the same thing on
say [1,2] is instantaneous (within a 1 second delta).

Phil Mahler
Middlesex CC
Bedford, MA
****************************************************************************
* To post to the list: email mathedcc@archives.math.utk.edu *
* To unsubscribe, send mail to: majordomo@archives.math.utk.edu *
* In the mail message, enter ONLY the words: unsubscribe mathedcc *
* Words in the Subject: line are NOT processed! *
* Archives at http://archives.math.utk.edu/hypermail/mathedcc/ *
****************************************************************************