Currently working on 2D graphing. That will probably take a while, but that's where I'm going.
Not sure what all is implemented for lists and matrices, but the basic four should work, plus exponents. Inverse of a matrix works, but anything less than that (eg, ^-2) is borked.

Next really will be graphing... must have gotten distracted....

you must have. Get Function Graphing done first I say.

Well, yeah, the others follow...
Besides, the biggest difference is in sequence and parametric modes; polar is basically an altrenate presentation of function

/me hopes some sweet-looking 3D graphing is planned... I think this is going to replace calc.exe for me.

O.0
[fearful of load]Please, not yet!!![/fearful of load]

Graphing is going really slowly. Then again, the project hasn't received much work lately.
I suspect I will have to add a lot more support for functions than expected. I don't expect graphing of any form to be ready for use any time soon.

External function support sounds like a pwnsome idea to me. I look forward to seeing how that turns out...

proegssilb, you have 6 weeks coming up where you have no life (same for me), so don't get ahead of yourself.

I was thinking of "y1(x)=x^2+bx+c:y1(5)" working as expected. Dunno if that's what you meant.

Robotics? Yeah, I was thinking the Christmas Break time frame. Not going anywhere big within two weeks.

Proegssilb: I was thinking more along the lines of external scripting files to define functions like crossproduct(vector v1, vector v2) { } kind of thing.

I believe that's in there. Lemme refresh my memory on the token classes...

Close. There's a function 'addFunction()' that T83 uses for every "built in". Take a look at tokens.py in the root of the T83 installation for a boatload of examples starting on line 576. Further down is symbol info, but new symbols would need new handling in the parser. Argument info is ignored with this parser.
You'd have to edit tokens.py to at least add an import for your custom file, but you can add extra functions to T83. Note that they have to be all lowercase letters in order to work properly in the parser.

So did anyone notice that T83 hasn't made any progress in my absence...?
I think Tablet 83 is as good as dead. I have gotten rather frustrated with trying to get anywhere on the project, and it seems to be poorly written at best.
I recently did a commit adding Significant Figures support, but it's usefulness is doubtful; there's no way to indicate pure/exact numbers.
In the meantime, graphing itself has gone nowhere, external functions have been untouched, and I don't remember the status of mathematical functions.
The last beta should be considered the last release until further notice.
Anyone who has comments should e-mail me or IM me. I probably won't be here much; I'm not very fond of forums... I may post if I get the same question a lot.
Those who want to help with the project may. I'm not going to stop anyone. I just don't see it as worth my time for how little results there are.
Thank you all for supporting my efforts.

Fair enough; sorry to see this project die, though. It's also a shame that you won't be stopping by here as much. What about forums do you dislike, particularly?

I've just got other ways to spend my time; there's a lot that went in, and not much that came out.

I hate to see this die man, you were doing great on it I though (liked what you had so far, just thought you were probably diving too deep too fast, time to come up for air man).

As for forums, I have to wonder about you some time.

Funny. I thought it was the regular infrastructure overhauls that sapped my energy the most...