0 like 0 dislike
5.1k 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 | 5.1k 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:172.71.254.193
©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
| 2.7k 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
| 8.8k 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
| 7.1k 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
| 3.1k 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
183,442 answers
172,219 comments
4,824 users