Question

The standard form of quadratic equation is represented as:

ax² + bx + c = 0 

where d = b² − 4ac, known as 'Discriminant' of the equation.

Write a program to input the values of a, b and c. Calculate the value of discriminant and display the output to the nearest whole number. 

Answer 1

import java.util.*; 
public class Q6
{
public static void main(String args[])
{
Scanner in = new Scanner(System.in); 
int a, b, c;
long d; 
System.out.println("Enter the values for a, b and c"); 
a = in.nextlnt(); 
b = in.nextlnt();
c = in.nextlnt(); 
d = Math.round(Math.pow(b, 2) − 4 * a * c); 
System.out.println("Discriminant(d) = " + d);
}}