# How can I solve quadratic equation using TI-83 plus?

• Dec 24th 2008, 01:30 PM
Diligent_Learner
How can I solve quadratic equation using TI-83 plus?
How can I solve quadratic equation using TI-83 plus?
• Dec 24th 2008, 04:21 PM
Jhevon
Quote:

Originally Posted by Diligent_Learner
How can I solve quadratic equation using TI-83 plus?

here
• Dec 24th 2008, 06:33 PM
Jameson
This is actually a fairly easy program to write and a good exercise in BASIC, or something similar which the TI-83 uses. I don't have one in front of me, but I'll try to remember the syntax from memory - it might a little off.

ClearHome
Disp "Ax^2+Bx+C"
Input A
Input B
Input C
If sqrt{B^2-4AC}<0
Then
End
Else
sqrt{B^2-4AC} -> D
(-B+D)/(2A) -> M
(-B-D)/(2A) -> N
Disp "Roots are:"
Disp M->DispFrac
Disp N->DispFrac
End

That's the idea of it, probably with a lot of errors though. :) Just having some fun.
• Dec 29th 2008, 05:06 AM
earboth
Quote:

Originally Posted by Diligent_Learner
How can I solve quadratic equation using TI-83 plus?

Have a look here: http://www.mathhelpforum.com/math-he...-equation.html

If you want to get the real solutions only you still can use the SOLVER of the TI83: MATH 0: SOLVER
• Dec 29th 2008, 08:50 AM
duydaniel
Quote:

Originally Posted by Diligent_Learner
How can I solve quadratic equation using TI-83 plus?

The best way to solve an equation (I believe) is to graph it up and find the x-intercept. The Ti-83 allow you to find zeros in the graph mode.