0 like 0 dislike
2.1k views
直線方程式的通式為 ax+by+c=0 ,請設計一程式,由使用者輸入平面上兩點,程式會計算出直線方程式後輸出a, b, c。

輸入說明:輸入會包含四個浮點數,倆倆之間會用一個空白隔開,四個浮點數依序代表第一個點的x座標、第一個點的y座標、地按個點的x座標、第二個點的y座標。

輸出說明:請依序輸出 a, b, c 三個常數,每個數都需輸出到小數點後六位。請確保a, b, c 間的最大公因數為1。

輸入範例:

1.0 1.0 1.0 2.0

輸出範例:

1.000000 0.000000 -1.000000
[Exercise] Coding (C) - asked in 2016-1 程式設計(一)AC by (18k points)
ID: 18070 - Available when: Unlimited - Due to: Unlimited

reshown by | 2.1k views

49 Answers

0 like 0 dislike
Hidden content!
#include <stdio.h>

#include <stdlib.h>

#include <ctype.h>

#include <math.h>



int main()

{
** *** *** ** * *** ** ** ** ** *** * ***
**** **** *** **** ** * **** * *
* * **** * * ** ** ** * ** ***
* ** ** ** * * * * * ** * ** *
* ** ** * ** ****** * ***** * * ** * * * *


** *** * *** ** ** * * (a-c!=0)
*** * * * *** * *** ****
* ***** * ** ** ** * ******** * ** *
** * ** * * * ** **** **
* *** * ** * ** ** * * * * * *
** * ** * ** *** *** * * ****
* * ** * * * * * * ** (a-c==0)
** * ** * ** *** * **
** * ** ** ***** * * ** * * **** *
* * * ******* *** ** * * *** *** **** ** * ** * ***** * *
** * **** *** * *** * * ** * **** * * ** ******* * * * *
* ** * * * * ** ** ** *
** * ** ** * * ** ("%.6f ",e);
** **** * ** ** ** ("%.6f ",g);
* *** *** ** * * ("%.6f",f);






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

}
answered by (-136 points)
0 like 0 dislike
Hidden content!
* ***** **** ** * *




* **

{
*** * ** ********
* * ** *** ***** * %f %f * ** * * * ** * **
* * ***** - x2 == 0)
*** **** *
* ** * **** * * **** * = x1;
** *** * * ** * = 0;
* ** * * ** ***** * ** ** = -x1;
** * ** * * * * **** *** %f *** * * *
* ** * *
*** * *** if(x1 - x2 != 0,y1 != 0)
*****
*** ** * * * * = (y1 - *** - x2);
* * ** * * *** = y1 - (a * x1);
*** ***** ** ** * = -((a * x1) + c) / y1;
*** * * ** * ******* ** * %f * ****

* * ** 0;

}
answered by (-100 points)
0 like 0 dislike
Hidden content!
#include<stdio.h>
* ** *** ** ** ***

int main (void)

{
** *** *** *** ** ****** x1,y1,x2,y2;


**** ** * ** *** *** ** * * * a,b,c;


*** ** * ** **** * * *** *** %f * * * * ** ** * * * * * ***
* * ***** * * * * ** ** ** * ** **
******* *** * ** * * ** ** * **
** * * * ** * ** * *** **** * **




*** ***** * *** *** * * * * * * %6f %6f",a,b,1);
** **** * * * * ** * 0;



}
answered by (-85 points)
0 like 0 dislike
Hidden content!
#include<stdio.h>
* * *** * * *
* ** ***

#include<math.h>



int main()

{
* *** ** ** * ** x1,x2,y1,y2,m,a,c0;
* * * ** ** ** ***** *** * * ***** *** * * ***
* ****** *** ****** ** * *** * * * * ** *** *
** ** * ** * ** *** * * ** ****** * *
*** *** ****** * *** *** * ** * *** * * *
*** ** * * ***** ** * ** = (y1-y2)/(x1-x2);
*** ** * *** ****** * ** ** *
* ** *** *** * ** * * ** *** *
** * * ** * **** * * * *** * * ** *** %f * * * ** * * * * * * * *

return 0;

}
answered by (-102 points)
0 like 0 dislike
Hidden content!
* * ** * * * * **


* ** * *** ** **


* * * * * * * *


* ****** ** **




* * ( ** )

{
* * * * *
* * *** * * %f %f ** * * ** ** * * ** *** * **
* = d - *
* = c - *
** = f * b - a * e ;
* ** * **** ** *** **
* * *
answered by (-276 points)
0 like 0 dislike
Hidden content!
** * ******* * * * *
* ** ** * * * ** *

void rect(int ,int,int ,int,int *,int * );

int main(void)

{
** ** * * * * * i, j, k, l;
* * * *** * * a,b,c;
* * ** **** * ****** * * %4f %4f *** **** * ** * ** * * **
* **** * ** * ** *** * *****
** ** * * ** * * * **** ** %6f ***** * * *


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

}
*** * * ******* * rect(int x,int y,int z,int w,int *p1,int *p2)
** * **** * ** ** **** * ** a,b,c;


* * * * * **** ** ***** * * * **
** ** * ** * * ** * * *** * * ***** ***** ***


* * ** ** ******
answered by (-114 points)
0 like 0 dislike
Hidden content!
* ** **** *** ** *


* *
* * * * * *** * ** * * a, b, c;


*** ** ** *** ** * %f %f * *** *** ** ** * * * ** ** ** *


*** * * * ** ** ** * = y2 - y1 / * * y2 - x2 * * *
* * ** *** = x1 - / * y2 - x2 *
* *** * **** * * * = - * * * - ** * *
** * * *** *** ** ** ** * * * * ** * ** * **** a, *


** * *

}
answered by (-105 points)
0 like 0 dislike
Hidden content!
*** *** * * *
*** ** * * **** *
* * ** ********
* *** * ** ** * *






** ***

{


** * * * * ** ** **** *** **** ** *


* * * * * * ***** * ** * * ** * ******** *** ***** * ***



* ****** dx = (x1 - *


* ***** ** * * dy = (y1 - * *
** *** ** **

** * * m = dy / **
** ** ***

* * * * *** h = y1 - ****
** * * * **

** * * a = b * h;

* * ** ** * *

** *** * * b =



* * * * ** c = b * h;


** ** ** * * *** * ** * *** * *** * ** * * *




* 0;

}
answered by (-157 points)
0 like 0 dislike
Hidden content!
* ** ***



int main(void)

{
******* * *** ** * * * x1,y1,x2,y2;
** * * ** * * ** **** a,b,c;
* *** **** * * * * * * ** *** * ** ** *** ** *** ** *
***** * ** * *
*** *** ** ** ********* * * ** ***** * *** = y2 - y1;
* * * ** * ** ** * ** *** * *** * ** * * **** = x1 - x2;
* ** * ** * *** ** *** * ** * * * * ** = -x1 * (y2-y1) + y1 * (x2-x1);
* * * * * * ** * *
****** ** ** * *** ***** * %f %f",a,b,c);






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

}
answered by (-320 points)
0 like 0 dislike
Hidden content!
**** ** * ** *
** * * ** ** ****

int main(void)

{
* * * *** * * ** x1,y1,x2,y2;
** * * * * ***** a,b,c;
** * * * * *** *** * ** **** * * ******* *** * *** *** ******
**** *** * * * *
*** * * * ** ** ** * ** * * * * = y2 - y1;
** * ** * ** * * *** **** * * * * *** = x1 - x2;
** * * ** ** *** * * * **** ** * ** *** * * * = -x1 * (y2-y1) + y1 * (x2-x1);
* ** * ** * *
* * **** * ******** ** ** %f %f",a,b,c);






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

}
answered by (-320 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.59.88
©2016-2024

Related questions

0 like 0 dislike
16 answers
[Exercise] Coding (C) - asked Dec 1, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 18075 - Available when: 2016-12-01 18:30:00 - Due to: 2016-12-01 21:00:00
| 962 views
0 like 0 dislike
86 answers
[Exercise] Coding (C) - asked Dec 1, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 18071 - Available when: 2016-12-01 18:30:00 - Due to: 2016-12-01 21:00:00
| 3.5k views
0 like 0 dislike
62 answers
[Exercise] Coding (C) - asked Dec 1, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 18067 - Available when: 2016-12-01 18:30:00 - Due to: 2016-12-01 21:00:00
| 2.7k views
0 like 0 dislike
21 answers
[Exercise] Coding (C) - asked Dec 1, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 18066 - Available when: 2016-12-01 18:30:00 - Due to: 2016-12-01 21:00:00
| 1.1k views
0 like 0 dislike
0 answers
[Resource] asked Dec 1, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 18085 - Available when: Unlimited - Due to: Unlimited
| 10 views
12,783 questions
183,443 answers
172,219 comments
4,824 users