C program to find roots of an equation.

 Q. Write a C program to find roots of an equation.

Ans:

#include <stdio.h>

#include <math.h>

int main() {

    double a, b, c;

    double discriminant, root1, root2;

    printf("Enter the coefficients (a, b, c) of the quadratic equation:\n");

    scanf("%lf %lf %lf", &a, &b, &c);

    discriminant = b * b - 4 * a * c;

    if (discriminant >= 0) {

        root1 = (-b + sqrt(discriminant)) / (2 * a);

        root2 = (-b - sqrt(discriminant)) / (2 * a);

        printf("Root 1 = %.2lf\n", root1);

        printf("Root 2 = %.2lf\n", root2);

    } else {

        double realPart = -b / (2 * a);

        double imaginaryPart = sqrt(-discriminant) / (2 * a);

        printf("Root 1 = %.2lf + %.2lfi\n", realPart, imaginaryPart);

        printf("Root 2 = %.2lf - %.2lfi\n", realPart, imaginaryPart);

    }

    return 0;

}