Computer Applications
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.
Java
Java Math Lib Methods
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Answer
import java.util.Scanner;
public class KboatQuadEq
{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.print("Enter a: ");
int a = in.nextInt();
System.out.print("Enter b: ");
int b = in.nextInt();
System.out.print("Enter c: ");
int c = in.nextInt();
double d = Math.pow(b, 2) - (4 * a * c);
long roundedD = Math.round(d);
System.out.println("Discriminant to the nearest whole number = " + roundedD);
}
}
Variable Description Table
Program Explanation
Output
![BlueJ output of The standard form of quadratic equation is represented as: ax 2 + bx + c = 0 where d= b 2 - 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. BlueJ output of The standard form of quadratic equation is represented as: ax 2 + bx + c = 0 where d= b 2 - 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.](https://cdn1.knowledgeboat.com/img/apc10/unit_6-p6.jpg)
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