C program to find the roots of a quadratic equation

C program to find the roots of a quadratic equation

How To write a C program to find the roots of a quadratic equation in C Programming Language ?


Solution:


//To write a C program to find the roots of a quadratic equation
#include<stdio.h>
#include<math.h>
int main()
{ 
 float a,b,c,x1,x2;
 printf("Please enter three numbers: \na= \n");
 scanf("%f",&a);
 printf("b= \n");
 scanf("%f",&b);
 printf("c= \n");
 scanf("%f",&c);
 if(b*b-4*a*c < 0)
  printf("Complex");
 else
 {
  x1=(-b+sqrt((b*b)-(4*a*c)))/(2*a);
  x2=(-b-sqrt((b*b)-(4*a*c)))/(2*a);
  printf("The quadratic roots for the given values of a,b and c are = \nx1=%f \nx2=%f",x1,x2);
 } 
 return 0;
}


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