The Super Quadratic Formula For the TI-81 and TI-82
This program is essential to all calculators. Unlike other quadratic programs, the Super
Quadratic displays the results in fractional terms and can handle imaginary answers.
Prgm:QUAD
:0\->\Z
1. :Input A
:Input B
:Input C
:B\^2\-4AC\->\I
2. :If I\>=\0
:1\->\Z
3. :2A\->\D
:~B\->\E
:Disp E
:If Z:Goto 1
:~I\->\F
:Disp "+/-I\sr\"
:Goto 2
:Lbl 1
:I\->\F
:Disp "+/-\sr\"
:Lbl 2
:Disp F
:Disp "---"
:Disp D
4. :If Z=0
5. :End
:Pause
:Disp ""
6. :\sr\I\->\I
:(E+I)/D\->\M
:(E-I)/D\->\N
:Disp M
:Disp N
7. :End
Instructions
The Super Quadratic accepts three inputs, corresponding with the equation AX*X + BX + C.
It then preforms some calculations and displays: (E +/- [radical]F)/D.
Then, if the result is real, displays the two roots. If the result is imaginary, an "I" will
appear before the square root sign.
Programming Notes
1.Gets information of equation AX*X + BX + C.
2.Tests for imaginary roots.
3.Displays fractional answers.
4.If imaginary, then quit.
5.TI-82 Users: Change the End command to Stop.
6.Solves the quadratic and displays results.
7.TI-82 Users: Change the End command to Stop.