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 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

C Program to Check Whether a given Number is Prime or Not

 C Program to Check Whether a given Number is  Prime or Not     In this example, we will check whether a given number is Prime or Not. To solve this problem we should know about Prime Numbers. What is a Prime Number?      Prime Numbers are those numbers which can only be divisible by 1 and the number itself.          For Example: 2,3,5,7,etc are prime numbers, as these numbes are only divisible by 1 and the number itself.   PROGRAM: #include <stdio.h> #include <conio.h> int   main () {      int   x , i , count = 0 ;      printf ( " \n Enter the number : " );      scanf ( " %d " ,& x );      for ( i = 1 ; i <= x ; i ++)     {          if ( x % i == 0 )              count ++; ...
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 Swap Two Numbers Without Using/Using Third Variable

  C PROGRAM TO SWAP TWO NUMBERS.   In this example, we will learn how to swap two numbers using third variable.   FLOWCHART TO SWAP TWO NUMBERS:         PROGRAM:   #include <stdio.h> int   main () {      int   a , b , c ;      printf ( "Enter the value of a : " );      scanf ( "%d" ,& a );      printf ( "Enter the value of b : " );      scanf ( "%d" ,& b );      printf ( " \n Before swapping values of a=%d and b=%d" , a , b );      c = a ;      a = b ;      b = c ;      printf ( " \n After swapping values of a=%d and b=%d" , a , b ); }   OUTPUT:     C PROGRAM TO S...
Post a Comment
Read more

C Program to check if a given square matrix is symmetric or not using function

 C Program to check if a given square matrix is symmetric or not using function.     In this example, we will check if a given square matrix entered by the user is symmetric or not. Here in the output we have taken a square matrix of 3x3. PROGRAM TO CHECK IF A GIVEN SQUARE MATRIX IS SYMMETRIC OR NOT USING FUNCTION #include <stdio.h> #include <conio.h> void  symmetric( int , int , int  [50][50]); void  main() {      int  row,column,i,j,a[50][50];     printf( "Enter the size of the matrices: " );     scanf( "%d" ,&row);     column=row;     printf( "Enter the matrix : " );      for (i=0;i<row;i++)     {          for (j=0;j<column;j++)         {    ...
Post a Comment
Read more