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Anton Yershov
Anton Yershov

Reputation: 1

How to program the quadratic formula (without simplifying the roots) on a ti83 plus?

First of all, I apologize if this isn't the correct website to ask this question on.

I know how to program the basic formula, but is it possible to program the formula to not simplify the roots? (so as to avoid irrational numbers)

Upvotes: 0

Views: 74

Answers (1)

HSchmale
HSchmale

Reputation: 1929

You could just do the 2 calculations seperatly as the quadratic formula is a fraction. My answer is in pseudocode.

Quadratic Formula

f and g are the top parts, e is the bottom part of the equation. a, b and c are the inputs.

 e <- 2*a
 f <- -b + sqrt(b^2-4*a*c)
 g <- -b - sqrt(b^2-4*a*c)

 Pretty Print Here

Once you have them like that you could print them out as shown in the line below. I am not exactly sure how to pretty print in ti-basic. But it would like something like the below.

disp f,"/",e
disp g,"/",e

All you have to figure out how to get it to print on one line for each disp. You could also use output.

Upvotes: 1

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