QuadraticEquation Program
Description
The roots of the quadratic equation ax2 + bx + c = 0 are given by the following formula:
The program prompts the user to input the value of a, b, and c, and then calculates and outputs the root(s).
Associated Concepts:
Math.sqrt() method
Two-way selection structure
Nested selection structure
Two-way selection structure
Nested selection structure
Algorithm:
Input a from the keyboard.
If a is zero, the program should output an error message
Otherwise
Input b and c from the keyboard.
Calculate the term b2 – 4ac (discriminant)
If the discriminant < 0
Output a message to indicate there is no real root
Otherwise
If the discriminant is 0
Calculate and output one single root
Otherwise
Calculate and output two roots
If a is zero, the program should output an error message
Otherwise
Input b and c from the keyboard.
Calculate the term b2 – 4ac (discriminant)
If the discriminant < 0
Output a message to indicate there is no real root
Otherwise
If the discriminant is 0
Calculate and output one single root
Otherwise
Calculate and output two roots
Source Code
Sample Run
