10-26 Exercise 3: Find roots of a quadratic equation

0 like 1 dislike
18.5k views

Write a program to find roots of a quadratic equation

A quadratic equation is a second order equation having a single variable. Any quadratic equation can be represented as where a, b and c are constants ( a can't be 0) and x is unknown variable. 

寫一個找二次方程的求根程式

For Example

 is a quadratic equation where a, b and c are 2, 5 and 3 respectively.

To calculate the roots of quadratic equation we can use below formula. There are two solutions of a quadratic equation.

使用下列公式:

x = (-b + sqrt(D))/(2*a)
x = (-b - sqrt(D))/(2*a)

where, D = (b*b-4*a*c) is Discriminant (判別式), which differentiate the nature of the roots of quadratic equation.

For the complex result (複數根):

realPart = -b/(2*a);
imaginaryPart =sqrt(-D)/(2*a);

Note: We have used sqrt() function to find square root which is in math.h library.

 

Example input 1:

1 2 1

Example output 1:

Roots of 1.00x^2 + 2.00x + 1.00 = 0 are real and same
x1 = x2 = -1.00

 

Example input 2:

1 -3 2

Example output 2:

Roots of 1.00x^2 + -3.00x + 2.00 = 0 are real and different
x1 = 2.00
x2 = 1.00

 

Example input 3:

1 2 2

Example output 3:

Roots of 1.00x^2 + 2.00x + 2.00 = 0 are complex and different
x1 = -1.00+1.00i
x2 = -1.00-1.00i
[Exercise] Coding (C) - asked in Chapter 5: Selection Statements by (5.2k points)
ID: 28934 - Available when: 2017-10-26 18:00 - Due to: Unlimited
reopened by | 18.5k views
0 0
We will continue this question in few days
commented by (12.1k points)
0 0
Everything is fixed. Enjoy your time with The Judge :)
commented by (12.1k points)
0 0
ANNNNNNNNNNNNNNNNNNNNNNNNNNGRYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
commented by (-249 points)
0 0
Your code has newline at the end sometime. You learned this lesson many times!
commented by (12.1k points)
0 0
After i correct the newline in my code,there is still wrong output.However,I had run the program in Codeblocks.The output is still as well as the result. Seeking for help.
commented by (-214 points)
0 0
your output lack of 1 space at line 8 when print out "Roots of ...". Please be careful with all small details when working with online judge
commented by (9.9k points)

56 Answers

0 like 0 dislike 
Hidden content!
#include <stdio.h>
**  ** * ** ** * *
int main()
{
**  *  **    ** *  * *  *** *     * *   *  ** **  * **  
*  * *  ** *  ** * **** *  * **** *  *    ****  %f * **      *** ***  * *  **  **  * * 
*  *  ** **  ** *** * ** *** ** * = (b*b-4*a*c);
**   **   *    *** ***   *  = (-b + sqrt(D))/(2*a);
* *  * ** **** *    *** ***    = (-b - sqrt(D))/(2*a);
  **  * ** ** ** *  * **  * * = -b/(2*a);
* * ** *  * *       **  ** **  *  * *****   * =sqrt(-D)/(2*a);
*  *  *** * * *         *  ** **      
*   **    * * ** *  * *  * 
* **  * *  * ***  ***  *  ** ***  ***  ****   * **  *******  * ***  * * * of %.2fx^2 + %.2fx + %.2f = 0 are real and *****  *    ***    * *
 *  * * **    *   ***** * *   *  *      * ****   *  *   * **  ***   * = %.2f\nx2 = %.2f",x1,x2);
 ** * *    ** *** *****  * **

      ** **** *  ****   *  * * if(D==0)
 * * **** *****    *   *  ** 
  * *  *** *  *  *** * **   **   *   * * *** *  *   * *    *    *  of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
    **** *** *** ***       **** **  * ** **    ** *** *   ** **** *  *  ** **** = x2 = %.2f",x1);
 *** * ***** * **  **** * * 
 * *    ** * ******* ***  *
 *  **  *** * ** *** ******  
 * * ** ** * *  *  *   ***  **   * * *  ***  **** * * **    *** ** ***  * * of %.2fx^2 + %.2fx + %.2f = 0 are complex and * *** *** *  **    
* *  ****   ******   **  ** *** **  ** * *  ***** ***        ** ** *  =  *** *  *   *  **  *** **  **** 
   * *     *  * * * ** ***  *** * *  * *  * ***  * *      *** * =  **  **   *  *  **** * * ** *  **
**   * *   ****  ** *******  * 
*   ** *   **   *   * *  *   *    0;
}
answered by (-281 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
 **** *** ****** ****  
int main()
{
  *  *** **  **  ***** * * **  * ** ** **   *    *  
 * **** * *  *** *  ****  *  *  *    *  * %f * ****  **  **        *  *   *  * 
***  *  ***   ***    *  **   * * = (b*b-4*a*c);
  **  * ** * ***     **** = (-b + sqrt(D))/(2*a);
  * * *    *** * ** ** ** ****  = (-b - sqrt(D))/(2*a);
*  **    * *  ****   ** ***  = -b/(2*a);
* ** *    **  **  **** *******  =sqrt(-D)/(2*a);
* * *  *****  *  * * *   *****  ** 
 *   *************   ** *** 
* *  ** **  *  **   ** *******  *  ***  *  * * *  *  *    ***    **  * ** of %.2f x^2 + %.2f x + %.2f = 0 are real and *   *  **    ***      *
*******  *   * * *   ******** *    *  ** ** * ***  ** ****  **   ***** = %.2f\nx2 = %.2f",x1,x2);
   * * ** ** ** ** ** ****** * 

 * *  *** *  *  * **  * ****  *** if(D==0)
****    **    ******** *  *  ** 
 ***  * ****   * *  *  * *** *   ******    *** *  ***   *     *   of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
*      ** * **   *** *   **  ***  *  * **      ** = x2 = %.2f",x1);
**  * ****     **   **** * ***
 *** * **  ** **    *   **** **  
** ** **  *   *  * ***  * *  *
*    *     *  ** **    ** ** *   ** * * *****    *  ** *** ***  * *** *    of %.2fx^2 + %.2fx + %.2f = 0 are complex and  ** *    *  *  ** 
* *** ** * **      *** * * ***** *   **** * ** *   *****   *    ** ** = **       * *      * * * * ** * *
** * *** *   **   * ** *     ***  ** *** ****       * * * ** = **** *   *   **** * **     *  * * *
    *** * **  ** * * ** **  **
***  **   *** ***  *   ** * ** *  0;
}
answered by (-281 points)
0 0
Case 0: Correct output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()

{
* ** * * **     *    *** ***  a,b,c,x1,x2,D=0;
**  *  * * *  ****  * * 
**      * * **  **    *   ***  * **** *    ** %f * *** **   * *     ***  *****   * 
 * * * ***  ** * *  * * ** 
***   ****  * **   **  ***   *   *
  * ***  * ** *** **  * * * * *   ** + sqrt(D))/(2*a);
*   *  * *    **  * *   ***** - sqrt(D))/(2*a);
   *  ***  ***  * ***** *    * 
***** * * * ****  * *  **    * **  
  ** **   ** *** * * **  *  
  *  *** *** *     ** ***  ***  *         * **   **    *   *  ***    of %.2fx^2+%.2fx+%.2f=0 are complex and  ***    ******   *   ***  ***  ** ****
 ****      * *   *  * * ***
** * ** ***   ****  * ** 
  ******* *  * * * **     if(D==0)
****  ** * * *   ** ** * * 
*  *    *    * *   * **   ** * ** * **  * ***  *** **   *  * ** ***** of %.2fx^2+%.2fx+%.2f=0 are real and same\nx1=x2=%.2f",a,b,c,x1);
 * *   ** *   *   * * * * *   
* *     *** *  *  **   
**   ** * ***  * * ***   ***
 *  ***** **** **   **    **
 ** **    *   *  * **  ** **  ** **  ***  *  **  **   **   *****    of %.2fx^2+%.2fx+%.2f=0 are real and * *   ** *  * ****  ***  *  **** **
*    ****  *  ******* *
 **    **** **** ***   **** *
*  * ** **  * ******* ***   
    * **    * *   * **  * * * * * ** **  0;
}
answered by (-127 points)
0 0
prog.c: In function 'main':
prog.c:12:14: warning: implicit declaration of function 'sqrt' [-Wimplicit-function-declaration]
     x1=(-b + sqrt(D))/(2*a);
              ^~~~
prog.c:12:14: warning: incompatible implicit declaration of built-in function 'sqrt'
prog.c:12:14: note: include '<math.h>' or provide a declaration of 'sqrt'
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
***  ****** *  *
int main()
{
*** * ** *** * *   ** ** * ** a,b,c,D;
**    ** *    *  ***   *   *  * x1,x2,r,i;
*  ** *****      *  ***** * *      * *** * ****   *  *** ***   * * *   * 
  *   **     *** *  * *  ********   *****
 *   *****   * * ** *     * ** *   ***
**  ** *   *  ** *** *** ***** ** *****  ****
 *   ****   *   ******* * **   
   * * * *  *  * * ** **  *
** *      *  * ***  *   *     * ** **  **   * ** **          *  * of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
  * *    * * *** * ***   *** * *   **** ***     ****   *  **** **    = x2 = %.2f",x1);
 *  *** **   * **** * ***
* * ***** * ******** * ** * *   *  if(D>0)
    *  *  ** ****  
 **  ***  * * *****   * *      *   **     *  * **** *** *** **** **   ** * of %.2fx^2 + %.2fx + %.2f = 0 are complex and   *** * ********  
 *  *   *   **      **  * * * **  **  * ** *    *   * * *  *    *   *   = %.2f\n",x1);
 **  ** * ** *   *    ** ***** *** *** * *****  *  ** ** **    = %.2f",x2);
 *    *** ** **  ****       * 
* *   *  *****  **** *  ** * * if(D<0)
 * ** *  * **  ** * * * *   *  
  **  *****    *** * *    ** *  * *** * * *    * * ** ** * * * ****** of %.2fx^2 + %.2fx + %.2f = 0 are complex and different\n",a,b,c);
 ****** ***    * *    **** * *******     ***** *  ** *  **   -b/(2*a);
 *  *  *** *** **     * **   ** ***   ***  ***  *    * **** **** * 
* * * **  **  ** ** *******  **** * *      * * *    **   * **  *** = %.2f+%.2fi\n",r,i);
* *   ***  *  * * *  * ***    ******   ***       * * ** *  *  * *  *** = %.2f-%.2fi",r,i);
* *     * *     *****  **  ** 
}
answered by (-329 points)
0 0
prog.c: In function 'main':
prog.c:6:5: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
     scanf("%f%f%f",&a,&b,&c);
     ^~~~~
prog.c:6:5: warning: incompatible implicit declaration of built-in function 'scanf'
prog.c:6:5: note: include '<stdio.h>' or provide a declaration of 'scanf'
prog.c:12:9: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
         printf("Roots of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
         ^~~~~~
prog.c:12:9: warning: incompatible implicit declaration of built-in function 'printf'
prog.c:12:9: note: include '<stdio.h>' or provide a declaration of 'printf'
prog.c:17:9: warning: incompatible implicit declaration of built-in function 'printf'
         printf("Roots of %.2fx^2 + %.2fx + %.2f = 0 are complex and different\n",a,b,c);
         ^~~~~~
prog.c:17:9: note: include '<stdio.h>' or provide a declaration of 'printf'
prog.c:23:9: warning: incompatible implicit declaration of built-in function 'printf'
         printf("Roots of %.2fx^2 + %.2fx + %.2f = 0 are complex and different\n",a,b,c);
         ^~~~~~
prog.c:23:9: note: include '<stdio.h>' or provide a declaration of 'printf'
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
  **   ***   *** ***  
int main()
{
* * *** *    ** ** * *   ** *    a,b,c,D;
*** *** **  *****  ** * * * *   x1,x2,r,i;
*   *  **  *    ** ***  * * *  *  * **   *       **      **** ***   *** **   
*****   ****** * * * * **** *  * *
   * * *   ** ** **   * ****  **  **
 * ***   * ****  ********    * **  * * * 
 * ***    **  *  **** * *** * **
  *   *  ****  * *     * **  *
 ****** * *    *   *    * *  ** **   * * **  ***** * * *** ****   of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
***  * *  *******   * ***   *  ** ***  **** * * ***  * **     * = x2 = %.2f",x1);
   *   * * *  * ** *  *** *
  *     *** *   ***** **** ** * **  * if(D>0)
*   *  *  **  **  * ** * ****
***     ************** **   *   ** *  * *   *  *  *** *  **     of %.2fx^2 + %.2fx + %.2f = 0 are complex and     **       * * 
     * *   ****  ** *  ** **** **        * *** ** * * **   *  = %.2f\n",x1);
*** *  *  **  *    * *   ***  ****  *  *** **    *   *     * * * = %.2f",x2);
***  *      ***  ***
  *  ****   ***    * ***  **   *   if(D<0)
* **  *    ***     **  ** *
***   ** *** *   **  **  *  ** **        * * *  *    * * **** * * * of %.2fx^2 + %.2fx + %.2f = 0 are complex and different\n",a,b,c);
  * *****  *    * ***** ** *  * *****    ** *    *  *  -b/(2*a);
 * *  *   * ***  *    *** *****   **   *  *  ***   ***  * **    *   * **
**  ***** ** * **     * **  *     * * **  ****   ****  **  * *    = %.2f+%.2fi\n",r,i);
  *      ***   **  **** * * ***  * *   ** * **** *    *  * ** **  * = %.2f-%.2fi",r,i);
* *  *   ** ******   * * * * 
}
answered by (-329 points)
0 0
prog.c: In function 'main':
prog.c:8:12: warning: implicit declaration of function 'sqrt' [-Wimplicit-function-declaration]
     x1=(-b+sqrt(D))/(2*a);
            ^~~~
prog.c:8:12: warning: incompatible implicit declaration of built-in function 'sqrt'
prog.c:8:12: note: include '<math.h>' or provide a declaration of 'sqrt'
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main()
{
   * ******* *****      **       ** a,b,c,d,x1,x2;
**** ******* *  * ** *     *  *    * ***  * ******   *      *****  ** **  * 
 *   * *****  *    * **** *** * * ****
          *  *** *    **** ** *  *** * * ***
 ***  **    *  *    ** *    ******* ** ***   
 *  * ** * **  **  * **** ** ** 
** *** **** *    ***  ***  
          *     *   * *****   *    ***  **  ***    ** ***** ** ** * of %.2fx^2 + %.2fx + %.2f = 0 are real and  *   **** **     
**   * * * * **** *    * * * ** * *   * * *** *** *** * * ********* **  = %.2f\n",x1);
***     ** ******   * * *   *    ****       **     ***     = %.2f",x2);
   **** ***  *** **    *  **
**   * * **   **** * **  *   ** if(d==0)
* * ** ***     ** * **      *
** **  * *  *  **  ** ******** *  *** *   *     **  *   ****** ***  *  of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
**** *   ****  * *   *       * *   * **** * *** *  ****   *  **** = x2 = %.2f",x1);
 * * *   * *      *      *
*  *** * ** ** ****   * *  **
  ** * ****     *    ***  * *  
 *   * ** ** * **       ** *    **     * *  ****** *    ******  * *   of %.2fx^2 + %.2fx + %.2f = 0 are complex and ***** *   ** * *     
** *       *   *   * **  *** * *  **********   *  * **    **  * * *  =  * * * *  * *    * ******* * **
**   * *  ***  **   *** *  *   *** ***  * **  ** **   **** *******  =  *   ****  * ****    *** **** **
  *  * * **    ** ****  **  
      * **  *** * **  **    ***  0;
}
answered by (-498 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main()
{
      *    * * **** ****    * * a,b,c,d,x1,x2;
     ** **** ***** *  *  **  ** *     ******  * **   ****** ***    **** 
         * ** * ** *     *   * *  *   
* ****  *** ***   * ***  *  *  = (-b + sqrt(d))/(2*a);
*** ****    *   * **   **  = (-b - sqrt(d))/(2*a);
******  **  *** * *     **** **   **
   * ** ***   ***   * ***  ****    * *  ** ***** ** **   **** *   *  of %.2fx^2 + %.2fx + %.2f = 0 are real and different\n",a,b,c);
* *    ***  * **  * *   *   **   *   **        *  *  **    * ** ***** **** ***  *** *  **   * ** *    **   *   **** ***  ** *  ****** *  *   **    ** *  **  ****  *  **** * ** **   ***** * **    **  *** ***   **** **  **** = %.2f\n",x1);
*    ** *  ***    * *** *  ***** *  **  * *    * **** * ** *  * ***   ****** *      *****    *  ****  **   *** *   **** ** ** ** **  * ***** *  * **  *   *  * ** * **    *  **** ** *** *    ***  ** * **   ** ** * * **   ** * **  *** = %.2f",x2);}
* * *****         *** ***   * if(d==0)
* ** **  *  *   ** *        ** ** ***  *  *
 ** **** * * * **    *    *  ** * **  * *  **     *   **   *  **   **  *  * ****  ** *  *  of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
*** *  **        *     * **   ** **  ** **   ** *** * * *       ** **    * *  * * * *   **  ** * * *  *** *  ** ****  ****  *  * *  * *  = x2 = %.2f",x1);}
     ***  * * *** * **    * *****
 *** **  * * ** ** *    ** *   * * * *  * *  **   * *    *  *    * *   ** of %.2fx^2 + %.2fx + %.2f = 0 are complex and different\n",a,b,c);
* **  *      ** *** *** *   ** * *   **  *     ** ***  * *  ***    *** =    * *        **  ** ******  
**    ** *  *** * * *** * * * **  ***** ***       *   * **  * =    *   * *  ***   *  * * **  *
   **  ** ****    *****  **** 0;
}
answered by (-108 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include  *   *  ** * **
#include   *  * * * ** 

int main()

{
   ****   **   ***  *  ***  ***  *  **   
* **  ***   **  ** ******  ***   ** *** ** %f *** **** * **** ** ***** **    

*  * *   *   * *** **** **  ** ***    ***
*  ***    ** ** **  * *****    + sqrt(D))/(2*a);
  ** **     *** * *  *  * * * - * * ***    *
  * *** ***  ***  ****  **  * * 
* *   * ** *   *****   * ***  *   ** * ***

  ** *   ** * **** * **** (D==0)
    *     * ** *   *   * 
*    **** *  * ** *  * *  ***  * *   *  *  *** **  *******  * ** *  **  of %.2fx^2 + %.2fx + %.2f = 0 are real and same\nx1 = x2 = ***        ** 
  ** **  ***   *** * ** 
*   ** * * **  **** ** ** * if (D>0)
** ** * ** * * ** * *  ****
    ** *   * * * *****    * ****  *     *   ** *  *** **     *  of %.2fx^2 + %.2fx + %.2f = 0 are real and different\nx1 = %.2f\nx2 = **** *          * *   
 **      *  *****  *   *** *
* ** **  **  *** ** * ** ****
* * **  *****     ** **  *
      * **  *      *** *   ** **** **   *    *  *      *** **  *** of %.2fx^2 + %.2fx + %.2f = 0 are complex and different\nx1 = %.2f+%.2fi\nx2 =   **** ***    ****  **  *   *
** ** *  **     *****   

****  ******  **  *     *****  *  *** 0;

}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include ** * ***  **
#include ***  ****    * 
int main(void)
{
float a,b,c, D, x1, x2,i;
  * ** * ***    * ***** * **   *** *** %f   ***     &a, &b, &c);
   *   *** *    ****** * *     * **  * 
*** ******    * ***  * * *  (D>0)
  *   ** *  *** **** **  *
 *  ***** *** *  **** ***   * **** **  **** ****  *  ** * ** *       
*  ** *   * **** ** *  * ** * * ** ** * ** **    * **  *  * **** ** ** * 

 ** *  *  *****     *** *****   * *  * *    ***  *  * ****  *   * * *      *           of %.2fx^2 + %.2fx + %.2f = 0 are real and  * *      = %.2f\nx2 = ** **********  **  
*     ****   **  *****   *   *
 ***   *  * * ***  **     * if (D==0)
* ****   *****    **** ***** 
  * *** * * *     ***   *    * **   ***  * **** * * * * *  * 
    ****** * * *  ** ***  * ***    **********  **** ****      * * * * of %.2fx^2 + %.2fx + %.2f = 0 are real and same\nx1 = x2 = * *  **   **    
**    *  *  * **** *******
       *  ******  **** * *  * * 
*      * ** *** *   *  ***  * 
***  *    *  ***** * *  *  * *** *     x1=x2 = -b/(2*a);
**** *  ***   **      ** * ** * *** ** * * *** ** ** *  ****** **  
  * * * * *  * ***** **  *     *    **** **    *  *  **    ****   * of %.2fx^2 + %.2fx + %.2f = 0 are complex and  * ** * = ***  *  * ** = ** *****   **  *    * x2,i);
 * **    *   * ** * * ***** 



* * **    ***    *** *   * ** ** 0;
}
answered by (-304 points)
edited by
0 0
prog.c: In function 'main':
prog.c:10:16: warning: implicit declaration of function 'sqrt' [-Wimplicit-function-declaration]
         x1=(-b+sqrt(D))/(2*a);
                ^~~~
prog.c:10:16: warning: incompatible implicit declaration of built-in function 'sqrt'
prog.c:10:16: note: include '<math.h>' or provide a declaration of 'sqrt'
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Correct output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Correct output
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:21:5: error: expected ';' before '{' token
     {
     ^
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Correct output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Correct output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include    * ****  **
#include *** ***  *  ** 

int main()
{
*   **     **  * **    ** ** * a, b, c, **    x1,x2, realPart, *    **   


  **** * ** * * * *      *    *        * * * %lf **   *** *** *** &b, &c);


** *    *  ***  *       * *** ** * *** * * = b*b-4*a*c;

 *       * **  *** *****    condition for real and different roots


*   *    * **  ** ****** ***     *  for real and equal roots
*** * *  *** *** **  *****    *  * (determinant == 0)
*    *** ** ******  ** * * 
 ***  * **    **   *** *     *  *  * ** * * ***  = x2 = -b/(2*a);
 **** * ** ****  *** *** * * *******       * ***   *          *  of %.2fx^2 + %.2fx + %.2f = 0 are real and    *** *    a,b,c);
* **  **  **  ***** ** * **   * *       ** *****  **   **  *** **** = x2 = *  *  *     x1);
  **   **    *  **   ***   **** 

     **   * *  *       **   * ***  if (determinant > 0)
*    ** *  * *  ** 
**     *  * **  *** * *    ** ** sqrt() function returns square root
  *** ***   * *** ** *  * *  **     *    **  **** ** * = *   ** **  * * ** **
* * *      *  * * *   ** * *  ** ***   *** * * *   * *** =  * **  ** *  **  **  *  

* * ****   *  * *  *** *****     *   ** *  *  *   * **** *   *  * *** of %.2fx^2 + %.2fx + %.2f = 0 are real and **** **      **** *
**** *        *  *  ** **  **        *  **  *** *  * *  *  * **  * =   *   **   ** x1);
* *  *   *  * *  * * *    * * ** **      * * **  **   **   *   = *** ***    x2);
   **  *  * * ********  *  *   if roots are not real
     * *   ***** ** ***     **  
    * ** **  ** *****    * **  
 *    * ** *** *******   **   ****             *  **  ******  = -b/(2*a);
 * ****   * * * ***  ****   ******** ***  *  *  **  * *** *     = *   * *    ** ** 
****** *  ***  * ** *   ** *** *** **     ** * * ***  **  ** of %.2fx^2 + %.2fx + %.2f = 0 are complex and * *      ** ** a,b,c);
**  *** ****  ******  * ****** **   *   * * ** **  ****  **** = *  * ** ***  ** realPart,  ***  ***  *
      * * *      * *  *** *  *** **   *    * *** **  **  ***** * = *  *   ** *  *  * realPart, **   ***   
* * *** *** *     *   **  * 

****  *     *     ***  *** * **  *** 0;
}
answered by (-167 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.243.109
©2016-2026

No related questions found

12,783 questions
183,442 answers
172,219 comments
4,824 users