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Step 1: Stuff You May Need

1. A graphing calculator capable of programming (TI83, TI84, etc)

Step 2: Getting Started

First off we need to create a new program.
Turn on the calculator and press PGRM
Go to the NEW Menu
Select Create New.

Step 3: Cover Screen

This part of the Program is the cover screen of the program.

::ClrHome
:Disp "Quad Program
:Disp "
:Disp "
:Disp "Press enter to
:Disp "continue.
:Pause

:ClrHome may be accessed in Pgrm -> I/O -> 8
:Disp may be accessed in Pgrm -> I/O -> 3
:Pause may be accessed in Pgrm -> CTL -> 8

Step 4: Main Menu

This portion is the Main Menu part of the program. Used to select Types of numbers.

:Menu("Number Types?","Real",A,"Imaginary",B
:Lbl A
:Real
:Lbl B
:a+bi

:Menu( can be accessed in Pgrm -> CTL -> C
:Lbl can be accessedin Pgrm -> CTL -> 9
:Goto can be accessed in Pgrm -> CTL -> 0
:Real can be accessed via Catalog
:a+bi can be accessed via Catalog


Step 5: The Core

This is the Core of the program.

:Lbl X
:ClrHome
:Disp "AX²+BX+C
:Pause
Prompt A,B,C
:Disp "(-B+√B²-4ac))/(2a)
:Disp "(-B-√B²-4ac))/(2a)
:Pause
:Delvar A
:Delvar B
:Delvar C

:Prompt can be accessed in Pgrm -> I/O -> 2
:DelVar can be accessed in Pgrm -> CTL -> G

Step 6: Done

You're done! Just run it and you're good to go.

Last thing I forgot to mention. This program is MirageOS compatible due to the extra Colon at beginning. Your could run the program while its archived then.
Hey..............that's not the real screen! You just shopped it in! <br> <br>No, but seriously. Good instructable. I used to know how to program my calculator, but I kinda forgot over the years.
Thanks. It was either shop it in or take pictures of the calculator and hope it turns out well.
Yeah, and I know from experience, taking pictures of screens tends to produce bad pictures. Once again though, good job!

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