How do I make a prgram on my TI 83 plus. I've tried lots of stuff, I even tried reading that book that came with it!

Just small programs.

I make really big programs with BASIC. I make games and all that. What you need to do is read chapter 16. It doesn't tell all, but just inferring makes it clear. That and all the people at my school that program. Just ask about something and I can help, I made a whole load of programs. Even one that works between two calculators, just plug them together!

How could I make a program that I can plug in the numbers and solve a quadratic equation. I look over chap 16 too.

Ok, make a new program named whatever you want. Next, hit prgrm and arrow right to input, and hit enter. In quotations, have whatever you want it to say (like "Variable X") then a comma, then A. Another input with B, and however many you need. Then do Disp (the equation you need using the variables, but not in quotes) There! Program done!

I can print out the code for you too, I just don't know the quadriatic equation. Give it and the input thingies you want, and I'll write it out for you.

It's attatched, I'm lazy.

So you want the code with that equation, with 4 vars (including answer)? Here goes...

Input "A",A

Input "B",B

Input "C",C

Clrhome

(-B (+-? what's that?) (square root sign) (B^2-4AC))/2A(little arrow, press STO) X

Disp X

 

That's it! I just don't know that +- simbol. I doubt its on a ti-83

I think you plus or minus becauce it's a square root?

Yeah, you come up with ywo answers because you plus for one and minus for another.

How do you make " " signs?

Alpha +

Okay, I did it, no mater what I put in it says the answer is zero??

Okay i'll have fun with what I got, I'm excited, I think I'll figure it out easy now

Don't get too excited, you might pee your pants.

I got the equating to work! Oh crap! I will be right back, I have to change my pants.

I warned you! Maybe you should buy some Depends.

I'm cool now. As opposed to, you know, wet.

My, that was quick.

It wasn't as bad as I first thought.

I think this thread is DONE! Kaput! It should be locked up, you already did the quadriatic thingy, unless you want more help.

What does ctrhome really mean? What are it's applications?

clrhome deletes all that nasty previous text from the screen, so if you were doing something before and didn't hit clear, clrhome clears home.

So if I took it out of my program it would still work, only the things I typed in earlier would be above it when I run the program?

 

I've used Input, but what's output?

Or below it, yes.

Output lets you choose where to put the text. The screen is 8 down by 16 across, so if you do Output(3,8,"Hi!) the Hi! part is at the center. Just type the lines down, then comma, then across, comma, your text (or, a variable or equation NOT in quotes)

okay, anything else important?