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

0 like 1 dislike
10.9k 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 | 10.9k 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:172.71.241.116
©2016-2025

No related questions found

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