# [Tutor] Re: Algebraic symbol manipulation program idea

**Roeland Rengelink
**
r.b.rigilink@chello.nl

*Sat, 11 Aug 2001 07:19:16 +0200*

Hi Christopher,
I'm interested in this stuff too, but I couldn't find the original
message you're
replying to. Do you have a link somewhere?
Roeland
Christopher Smith wrote:
>*
*>* Shelley Walsh <Shelley@shells.demon.co.uk> wrote:
*>* | I am a mathematics instructor and lately I have been learning Python
*>* | partly out of fascination with its potential for helping to explain
*>* | algebra. Yesterday I downloaded a symbol manipulation program called
*>* | Pythonica and got to thinking that there ought to be an easier way to
*>* <cut>
*>*
*>* I read the whole post and am interested in this sort of thing as
*>* well but don't have time to respond much now. Just wanted to note
*>* that I, too, just found Pythonica in my search for a symbolic
*>* manipulation program and found a bit of a parsing bug.
*>*
*>* When given 2*3+2^2/3 Pythonica returns:
*>*
*>* in FullForm: Divide[Plus[Times[2,3],Power[2,2]],3]
*>* evaluates to: 3.33333333333
*>*
*>* but it should probably be something like:
*>*
*>* Plus[Times[2,3],Divide[Power[2,2],3]]
*>*
*>* and evaluate to 7.33333333333
*>*
*>* /c
*>*
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*
--
r.b.rigilink@chello.nl
"Half of what I say is nonsense. Unfortunately I don't know which half"