C - Program To Find The Roots Of Quadratic Equation
#include<stdio.h>
#include<math.h>
#include<conio.h>
void main()
{
int a,b,c;
float disc,r1,r2;
for(;;)
{
printf("\nEnter the non Zero co-efficients a, b,c\n");
scanf("%d%d%d",&a,&b,&c);
if((a==0) || (b==0) || (c==0))
{
printf("\nPlease enter non zero co-efficients \n");
}else{
disc=((b*b)-(4*a*c));
if(disc>0)
{
printf("Roots are Real:\n");
r1=(-b-(sqrt(disc)))/(2.0*a);
r2=(-b+(sqrt(disc)))/(2.0*a);
printf("Roots are:%f and %f \n", r1,r2);
}
else if(disc<0)
{
printf("Roots are Imaginary:\n");
r1=-b/(2.0*a);
printf("First root: %lf +%fi \n", r1,sqrt(-disc)/(2.0*a));
printf("Second root:%lf -%lfi\n", r1,sqrt(-disc)/(2.0*a));
}
else
{
printf("Roots are Equal\n");
r1= -b/(2.0*a);
printf("Equal; roots are:%f and %f \n", r1,r1);
}
getch();
}
}
}
