Re: LZ-Adv: Clearing up some TI-82 confusion.
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Re: LZ-Adv: Clearing up some TI-82 confusion.
I have heavy 82 and 85 experience. Here are the 82 vars:
capital A-Z, theta are real
[a] to [b] are matrices
L1 to L6 are lists
pic1-pic6
gdb1-gdb6
This is one of the greatest weaknesses of the 82 since it limits your
variables, and you have to remember what they really are.
On Thu, 24 Oct 1996, Martin Hock wrote:
> I used to own a TI-82 until I gave it to my sister a few months ago when I
> got my lovely 85 and created the extremely popular Meister Mind ZShell
> Edition (DOWNLOAD IT TODAY!), so I can answer any questions from the user
> perspective.
>
> To clear up one point: it does NOT have named variables. This makes
> programming suck. The variable handling is very inconsistent. The real
> variables are fixed as A-Z and theta. The list variables (1-dimensional
> array) are L1-L10, I think. And the matrix variables (2-dimensional array)
> are A1-A6, I think. The picture variables are Pic1-Pic10, etcetera. Very
> annoying. The only things on the calculator that you can name are programs,
> and these only A-Z, 0-9, and theta. We'll get to lowercase later.
>
> So howdafuck do you store binary programs on the stupid piece o' turd?
> Goooood question. I think it's probably impossible without some sort of
> funky rom patch.
>
> Furthermore, I'm not sure if Mattias' method would work on the machine.
> Because of its inflexibility and general balkiness, I don't think you could
> store something like E145 to a real variable. There is no variable that you
> can store anything you want to besides a Program variable, but those
> variables are probably handled strangely and tokenized or something.
>
> But here's the final nail in the coffin: I think EVERYTHING is tokenized.
> This is evidenced by the fact that you cannot type in your commands as
> letters like you can on the '85. You must choose them from a menu. For
> example, on the '85 you can type sin 90 and you get 1 (if in degree). But
> on the '82, if you type SIN 90 on the keypad, it will balk. You must press
> the button labelled SIN, which will spew out "sin " onto your screen. If
> you attempt to backspace it, the whole thing will blow up as soon as you try
> to eliminate the first character. Tokenized! Yech.
>
> If you're already grimacing, here's something worse: you can't even type in
> lowercase letters, yet they are present in the font! For example, "sin " is
> in lowercase. To put stuff in lowercase, you must cheesily use Output
> (identical to Outpt on the 85; you choose coordinates on text screen and can
> spew anything you want there) and overwrite other stuff. For example, if
> you want to say "taco", you could do this:
> Output(1,1,"tan ") <- To generate, type ["] [TAN] ["]
> Output(1,3,"cos ") <- To generate, type ["] [COS] ["]
> Output(1,5," ") <- This is to erase the "s" in "cos "
> (In case you're wondering, Output appears as the token "Output(" and you
> supply the terminating right parenthesis. Please turn your head to the side
> before you vomit now or you might ruin your monitor.)
>
> Weird, eh? So I definitely do NOT recommend that Mattias, or anyone else
> for that matter, get an 82, or even touch one for that matter. We can just
> leave it alone.
> _______________________________________________________________________
> |Martin Hock - oxymoron@aimnet.com - Oxymoron at #irchelp on EFnet|
> |"I'm influenced by television? That's a load of rich creamery butter!"|
>
>
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