Post your ideas for new miscellaneous programs here, or build on ideas posted by other visitors.

Is anyone out there in TI calculator land into aviation and have any interest in a TI-89 based E6-B flight computer? (if you don’t already use a nice Jeppesen one that is… hopefully mine would have much nicer graphics.)

I was thinking of taking on the project… and I wanted to put some feelers out there for demand (?) for such a thing. Alternatively, you may not have any idea what I am talking about.

Chances are rare, but if you want to help out / do this project / want it on your calculator I would love encouragement. I happen think it’s a neat project for any other pilots who also happen to program TI-89 asm. (not like you could use it on the written exam...)

I am a programmer and a student pilot... I'd love to have e6b functionality on my TI-89, but I haven't been able to find it. I haven't programmed the 89 since my high school days, but if you're looking for help just e-mail TomJones432@yahoo.com.

-- Bill

I'm interested in aviation and I'd like to see this, although from what I understand I couldn't run it on my 84, tho my friends could (Thank Goodness for friends with more powerful calculators)

Like this one?
(See URL)

I have some questions for expert basic programmers regarding what I can do with Basic. 1) Can I create an automatic Alpha-Lock at user input? If so, how? 2) How can I 'protect' my programs from people screwing around with them in the program editor? 3) This is a little more specific, but when I have

: Input "WORD? ",Str1
: lengthStr1->X
: 0->T
: Lbl 1
: ClrHome
: RandInt(1,8)->A
: RandInt(1,16-X)->B
: Output(A,B,Str1)
: T+1->T
: If T=10:Goto 2
: For X,1,500
: End
: Goto 1
: Lbl 2
: Stop

Why do I get an Error for Domain?

the reason that you are getting a domain error is because u have the lenghth of str1 being stored in to x then you have x as the variable for x all you have to do is change to variable for the for to something and youll be fine

im sry i had a typo its not then you have x as the variable for x it should say then you have x as the variable for the for command

1) I don't think so... not in BASIC.
2) No. You can't change that using BASIC. There are however a lot of ASM programs and applications that can do that for you.
3) Well, there's nothing really wrong with the displaying part, but the main problem is this line:
: For X,1,500
Also, there's nothing wrong with this line, but you use the X variable again. When the program jumps back to label 1, it uses X as the length of Str1 again. X is 500.

There are two options to fix this;
a) remove ": length(Str1)->X" and change ": RandInt(1,16-X)->B" to ": RandInt(1,16- length(Str1))->B"
b) change ": For X,1,500" to for instance ": For I,1,500"

Addressing the issue of protecting your program:

you can't do it on the calculator without a special program or app, but if you have a program editor on your computer (it comes with most SE versions) there's a "protect" feature

Someone should program an assembly compiler that's built into the calc. That would be awesome!

There are some but they just crash your calculator.

Would anyone know how to make a program to program Z80 on the Calc (mainly the TI-83(+))? I could really use it.

While being able to program ASM while your not listening to the teacher would be fun, ASM can really mess with your TI.
This is why people use VTI, because you can reset the calc after you mess it up.
People also use it because you can set debug points and check registers and stacks on the calculator, tools that no ASM programmer could do without.

But good luck starting this project!!!!1! i am sure it will be a great one, i always love a good on-calc compiler!

What do the Lib() commands do on the TI-84+ ??

Does anyone know how to make it so that when you turn your calculator (ti-84+) on you have to log in? if so please tell.

PLEEEEZZZZZ!!!! tell if there is any possible way to make it so you need to enter a password to get on to your calculator!! (for ti-83+/84+)

Yea that sounds like a good idea. I wish that i knew how to do that.

I posted a program called Password with an App called 'Start-Up'. It lets you customize what shows or runs when you turn calc on.

that is a good idea. there is a cheat way with the mirage OS but i wish i knew a REAL way to do it.

to tell you the truth, there is NO SECURE WAY to lock your calculator. i often hack my friend's calculators when they forget their passwords. mirage ESPECIALLY (it being so easy to hack). i'd say your best bet to prevent people from getting on is to lock it in something. i actually bought a lock for my backpack and i've been happy with it.

I have an idea for an extremely simple encryption/decryption program, but i need to know if there's a command to delete only a single variable out of a list. (for example, delete the 3rd variable in list 1). To prevent the theft of this program before it's published, I'm not going to include any details on how I plan on designing it. Just be patient and steal it after I upload it.

you may be able to just put in say delvar L1(1)

tried T_T i guess it might not be possible with BASIC. as useful as it is, it does have limits