Scheme Exercises

back to exercise list       previous     next

Group:     Exercise: 40/48 

discriminant:  Calculate the discriminant of a quadratic.

Create a function "discriminant" that returns the value of the discriminant of the quadratic specified.
(discriminant 1 2 3) =>- 8
(discriminant 1 2 -4) => 20
Note:
1. (discriminant a b c) is for the quadratic ax^2 + bx + c
2. The discriminant is the part that appears under the square root in the quadratic formula, the square root is NOT included.