0 like 0 dislike
6.3k 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 | 6.3k 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:172.70.100.69
©2016-2025

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
| 3.3k 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
| 11.2k 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
| 8.8k 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
| 3.9k 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
183,442 answers
172,219 comments
4,824 users