Skip to main content

C Program to find out the roots of a Quadratic Equation and also test for Real and Complex roots

 C Program to find out the roots of a Quadratic Equation  and also test for Real and Complex roots. 

    In this example, we will calculate the roots of the quadratic equation by testing for real and complex roots. We can test real and complex roots by checking these conditions :

If b2 −4ac < 0, then there are no real roots.
If b2 −4ac = 0, then both the roots are equal.
If b2 −4ac > 0, then roots are real and distinct.

 

PROGRAM TO FIND OUT THE ROOTS OF A QUADRATIC EQUATION.

#include<stdio.h>
#include<conio.h>
#include<math.h>
int main()
{
    int a,b,c,d;
    float x,y;
    printf("Enter coefficient of x^2,x and constant : ");
    scanf("%d %d %d",&a,&b,&c);
    d=b*b-4*a*c;
    if(d<0)
    {
        printf("Roots are Complex and Imaginary.");
    }
    if(d==0)
    {
        printf("Both roots are equal");
        x=-b/(2.0*a);
        printf("Roots is %f",x);
    }
    if(d>0)
    {
        printf("Roots are real and distinct.");
        x=(-b+sqrt(d))/(2*a);
        y=(-b-sqrt(d))/(2*a);
        printf("\nRoots are: %f %f",x,y);
    }
    getch();
}


OUTPUT TO FIND OUT THE ROOTS OF A QUADRATIC EQUATION

 Enter coefficient of x^2,x and constant : 6

 11

 -35

 Roots are real and distinct.

 Roots are: 1.666667 -3.500000


NOTE: You Can Comment Your Code if you have solved differently and we will pin it in the comment section.  Let's Learn together. 


MOTTO: 

You Learn, I Learn together We Learn.

Labels:

Comments

Post a Comment

Please do not spam any link

Popular posts from this blog

C Program to Add Two Matrices Using Multi-dimensional Array.

C Program to Add Two Matrices Using Multi-dimensional Array.       In this example, we will add two matrices using multi-dimensional array. Two matrices can be added if they are equal means their order/dimensions must be same. Addition of matrices is performed by adding the corresponding elements of the two matrices.     Here in the Output we have  allowed the user to enter the row and column size of their matrices according to their requirements but they can enter the value of row size and column size less than 100. PROGRAM #include <stdio.h> #include <conio.h> int   main () {      int   row , column , i , j , a [ 100 ][ 100 ], b [ 100 ][ 100 ], c [ 100 ][ 100 ];      printf ( "Enter the row size of the matrices(max. value 100) : " );      scanf ( " %d " ,& row );      printf ( "Enter the co...
Post a Comment
Read more

C Program to find the sum of the elements of a 2-D array.

 C Program to find the sum of the elements of a 2-D array.     In this example, we will find the sum of the elements of a 2-D array allowing the user to enter the row size and column size according to their requiremnts.      Here in the output we have entered a row  size 3 and column size 3. PROGRAM #include <stdio.h> #include <conio.h> void   main () {      int   a [ 50 ][ 50 ], r , c , i , j , sum = 0 ;      printf ( "Enter the row size and column size of the array :" );      scanf ( " %d%d " ,& r ,& c );      printf ( "Enter the elements of the array : " );      for ( i = 0 ; i < r ; i ++)     {          for ( j = 0 ; j < c ; j ++)       ...
Post a Comment
Read more

C Program to input Values in a 2x2 square matrix and display the value

 C Program to input Values in a 2x2 square matrix and display the value     In this example, we will accept values from the user in a 2x2 square and matrix and then it is displayed. To solve this problem we must know what is matrices and arrays. What are Arrays?      An array is a data structure for storing more than one data member of similar data type.          Array can be of following types: One-dimensional Array Two-dimensional Array Multi-dimensional Array             In Array we must always initialize values. PROGRAM #include <stdio.h> #include <conio.h> int   main () {      int   a [ 2 ][ 2 ], i , j ;      printf ( "Enter the values of the matrix:" );      for ( i = 0 ; i < 2 ; i ++)     {          for ( j = 0 ; j < 2 ...
Post a Comment
Read more

C Program to input and display details of students using structure

 C Program to input and display details of students using structure.       In this example, we will enter the details of students like roll number, name and total marks using structure and will be displayed. The total number of student should be entered according to the requirements of the user(maximum value is 50). We can increase the maximum number by changing the statement struct student[50];  to struct student[100];     Here in the output we have entered details of four student and displayed them accordingly. PROGRAM #include <stdio.h> #include <conio.h> struct   student {      int   roll ;      char   name [ 20 ];      int   total ; }; void   main () {      int   i , n ;      struct   student   std [ 50 ];      printf ( "Enter the number of students ...
Post a Comment
Read more