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

0 like 1 dislike
15.3k 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 | 15.3k 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:172.70.80.197
©2016-2025

No related questions found

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