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Author Topic: A symbolic library for the Nspire non-CAS  (Read 20524 times)

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Offline bwang

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A symbolic library for the Nspire non-CAS
« on: December 28, 2009, 09:28:25 pm »
A combination of boredom, need, and a sudden urge to test the speed of Nspire Basic has caused me to write a symbolic manipulator/CAS for the regular TI-Nspire. It does factorization, expansion, differentiation, and several other things right now, with varying degrees of success and slowness. It most notably DOES NOT support implied multiplication.

Comments/suggestions about the program, its bugs, and its terrible speed (especially the differentiator) are all welcome.

How do you insert images in posts? Clicking the "Insert Image" button just gives me a pair of img tags.
« Last Edit: February 24, 2010, 11:45:03 pm by bwang »
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Offline DJ Omnimaga

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Re: A symbolic library for the Nspire non-CAS
« Reply #1 on: December 28, 2009, 10:15:50 pm »
Mhmm sounds interesting, I might give this a try when I put my Nspire back in Nspire mode instead of 84+

To insert images you must upload them the same way you upload zip files (like you did with nspire_alg.zip)
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Offline Builderboy

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Re: A symbolic library for the Nspire non-CAS
« Reply #2 on: December 29, 2009, 01:15:31 am »
Haha, nice to see you finally posted that ;)

Just goes to show, while nSpire Basic might be horrible lacking in the graphics/input department, it does have a very full and functional math department.  Then again, who uses their calculators for Math anymore! :P
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Offline simplethinker

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Re: A symbolic library for the Nspire non-CAS
« Reply #3 on: December 29, 2009, 11:09:13 am »
Quote from: bwang on December 28, 2009, 09:28:25 pm
How do you insert images in posts? Clicking the "Insert Image" button just gives me a pair of img tags.
Attaching an image to a post will add a thumbnail to the bottom of the post, which can be clicked on to enlarge (it also has a link to download the image).  I don't know of a way to insert the picture anywhere in the post, so to do that you would have to use a website like photobucket or mediafire to host it, then use the forum image tags.
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Offline Silver Shadow

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Re: A symbolic library for the Nspire non-CAS
« Reply #4 on: December 30, 2009, 07:01:04 am »
I've just tried the lib and it works great! I didn't know you could do that in basic...
By the way, you provide a "hacked" version of one of the TI's libs. What does the "hack" actually change?
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Offline vadko

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Re: A symbolic library for the Nspire non-CAS
« Reply #5 on: January 25, 2010, 06:49:49 am »
Is there a new version or future plans for a new one?

-Had a previous doubt that was solved as I was hitting 'post'
« Last Edit: January 25, 2010, 06:56:40 am by vadko »
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Offline bwang

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Re: A symbolic library for the Nspire non-CAS
« Reply #6 on: February 02, 2010, 04:16:43 pm »
The hacked numtheory lib removes a bunch of error checking and Disp statements. The original had several functions unusable for programming due to a Disp statement in the function before the return statement.

EDIT: It seems like there might be actually people who are using this thing. Does anyone have any interesting feature requests.
« Last Edit: February 02, 2010, 06:47:34 pm by bwang »
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Offline Silver Shadow

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Re: A symbolic library for the Nspire non-CAS
« Reply #7 on: February 03, 2010, 03:02:20 pm »
Quote
Does anyone have any interesting feature requests.
Not really, just make the existing ones better.

And I also have another question: if I keep TI's original lib, which of your functions will be affected?
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Offline bwang

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Re: A symbolic library for the Nspire non-CAS
« Reply #8 on: February 04, 2010, 01:47:40 am »
A lot of them. I think the affected ones will mainly be in gfp.tns (in particular, the modinv function). I don't remember if anything else uses numtheory functions. Maybe I should recode the affected functions...
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Offline bwang

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Re: A symbolic library for the Nspire non-CAS
« Reply #9 on: February 04, 2010, 02:27:40 am »
New version. Hacked numtheory renamed to nt.tns.
Also fixes a nasty display bug in the integrator.
« Last Edit: February 04, 2010, 02:31:22 am by bwang »
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Offline theUnnamed

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Re: A symbolic library for the Nspire non-CAS
« Reply #10 on: April 13, 2010, 04:24:44 pm »
Hi I've decided to take it on myself to continue work on this library. and Intend to add functionality and speed up execution and optimizing and although I don't yet fully understand the code base yet I would like suggestions on what I should improve
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Offline Silver Shadow

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Re: A symbolic library for the Nspire non-CAS
« Reply #11 on: April 14, 2010, 02:05:57 am »
It would be cool if someone made an asm version or something, since Ndless2 will be coming out. It would allow for better speed and more functions.
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Offline DJ Omnimaga

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Re: A symbolic library for the Nspire non-CAS
« Reply #12 on: April 14, 2010, 02:22:50 am »
Quote from: Builderboy on December 29, 2009, 01:15:31 am
who uses their calculators for Math anymore! :P
Maths? What are those?
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Offline theUnnamed

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Re: A symbolic library for the Nspire non-CAS
« Reply #13 on: April 14, 2010, 06:38:47 am »
That post seems vaguely familar
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Offline Eeems

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Re: A symbolic library for the Nspire non-CAS
« Reply #14 on: April 14, 2010, 10:27:14 am »
Hmm...im getting a wierd sense of deja'vou
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