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csc, sec, and cot on TI-86


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Is there any way to program (w/o making a program ;) ) a variable to be csc, sec, or cot on my TI-86?

I think it might be impossible because you'd have to have the function set to be:

csc -> 1/(sin x)

but I don't know how you would make the 'x' in the 'sin x' be the x that you'd put just after the csc or whatever. Is there a way to do this anyone?

If it is possible, then I'd set those 3 functions under my custom menu (right next to tetris of course) and make it just a bit easier.

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I'm pretty sure you'd have to program in assembly to get that sort of functionality - the TI-86 doesn't include built-in BASIC support for programming new functions (unlike, for example, the TI-89, which does include limited support). You could also try looking around for somebody who's already done it on www.ticalc.org ; you never know, you might get lucky.

Edit: actually, thinking back to when I used a TI-86, it would be pretty simple to make a program (though for some reason you say you don't want to do this) to perform this action, though it couldn't be used in a csc( kind of way (as I said, the TI-86 doesn't have BASIC functionality for this sort of modification). Simply make the program "csc", or whatever, use the code:

input abc

1/sin(abc) -> out

disp out

and you have your program - it's a bit clunky, but would work well.

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