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November 15th, 2014, 09:54 PM   #1
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Question pls help (searching free software)

Hello all.

I want to find free software that can do "things" with "equations".

Idk terms that are in use for such things, sorry, but there is what I need:

FOR a(x) = 2x^3 + x AND b(a) = a^2 - 3a
I want to see the result b(x) = 4x^6 + 4x^4 - 6x^3 + x^2 - 3x (sorted)
In addition, all similar terms (if any) grouped, etc etc.

please help

ty for moving to the subforum I missed to notice.

Last edited by Daughter; November 15th, 2014 at 10:12 PM. Reason: moving between subforums
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November 15th, 2014, 11:36 PM   #2
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Quote:
Originally Posted by Daughter View Post
Hello all.

I want to find free software that can do "things" with "equations".

Idk terms that are in use for such things, sorry, but there is what I need:

FOR a(x) = 2x^3 + x AND b(a) = a^2 - 3a
I want to see the result b(x) = 4x^6 + 4x^4 - 6x^3 + x^2 - 3x (sorted)
In addition, all similar terms (if any) grouped, etc etc.

please help

ty for moving to the subforum I missed to notice.
Maxima will do this (but like most symbolic maths software it has a steep learning curve) See the attachment (for a Maxima session being run with the wxMaxima front end).

The maxima site is here

CB
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File Type: jpg Maxima.jpg (31.9 KB, 7 views)
Thanks from Daughter

Last edited by CaptainBlack; November 15th, 2014 at 11:39 PM.
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November 16th, 2014, 12:55 AM   #3
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thanks for the answer, but ... haha, while I was waiting to see any replies I had found that Maxima, and now... have to ask for an alternative, because, as I understand it, any mistake in the syntax leads to the ... socket closing, meaning it works online only. I need program that doesn't rely on any server.

Since you know about Maxima, can you tell if there are any program capable to work on thy own(offline)?

P.S. The list on wiki doesn't tell me anything, therefore I asking, hoping to save time from trying all from it:
http://en.wikipedia.org/wiki/List_of...lgebra_systems

Last edited by Daughter; November 16th, 2014 at 01:04 AM. Reason: additional info
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November 16th, 2014, 04:11 AM   #4
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Quote:
Originally Posted by Daughter View Post
thanks for the answer, but ... haha, while I was waiting to see any replies I had found that Maxima, and now... have to ask for an alternative, because, as I understand it, any mistake in the syntax leads to the ... socket closing, meaning it works online only. I need program that doesn't rely on any server.

Since you know about Maxima, can you tell if there are any program capable to work on thy own(offline)?

P.S. The list on wiki doesn't tell me anything, therefore I asking, hoping to save time from trying all from it:
List of computer algebra systems - Wikipedia, the free encyclopedia
Maxima does not, it will run perfectly well without an internet connection. The problem you see is because of the way the default interface access the HTML manual, I believe). Open up the Maxima folder and with luck there will be a wxmaxima sub-folder (I am assuming you are on a Windows box here, not sure where or if it is installed by default in Linux), open it and fire up the wxmaxima executable there, you should have no problems with that (and it is a better interface to Maxima than the default).

Yacas is another CAS system that is free that may do what you want. (You will need to Google for it). You could also try Sage it has Maxima and lots of other mathematical toys built into the default distribution. Xcas will also do what you want. But I find none of these a friendly as Maxima under the wxMaxima interface.

CB
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Last edited by CaptainBlack; November 16th, 2014 at 04:18 AM.
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March 26th, 2016, 03:40 PM   #5
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Not sure whether it's what you're looking for, but maybe try Inquist. Inquist calculation schemes

Last edited by skipjack; April 25th, 2016 at 02:41 AM.
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