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

0 like 1 dislike
6.7k 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 | 6.7k 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:172.70.131.202
©2016-2025

No related questions found

12,783 questions
183,443 answers
172,219 comments
4,824 users