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.