0 like 0 dislike
6.9k 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 | 6.9k views

49 Answers

0 like 0 dislike
Hidden content!
** * * * * **


* **** * ** ** *


* *** *** ** *


* ** ** ** * * *




* ** ( *

* * **
* *** **** ** * ** * ** ** ** * * *****
* = d -
* = c -
* = f * b - a * e ;
= 0 - *
* *
*
** *** * ** * * = - ** * * * *



* *** ** ** * * ** ** *
* *** **
answered by (-276 points)
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!
#include **** ** ** *



int main(void){


* ** **** **** ** * * * * ax , ay ,bx ,by ,a ,b * **** *


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


* * ** *** * ** * - bx) != 0){
** * ** * * * * = (ay - ** **
** * * * * * = -m*ax + ay;
** *** * *** * = m;
* *** * ** **** = -1;

 }
** *** **** * ** *
* ** *** * = 0;
* * *** * ** * * * = 1;
*** *** **** = -ax;
* ** *** *


* **** ** **** = a;
**** ** ** * *** * * * = b;
*** ** * = c;


*** ** < 0)
* * * * * **** = -i;
* * if (k < 0)
** * *** * *** * = -k;


** ** * (i < 1){
* * * * * ** * *** = 1/i;
** ** ** * ** = a*g;
*** ****** * * * *** = b*g;
** *** * * = c*g;
* **
* ***** if (k < 1){
* * * ** *** *** = 1/k;
**** * *** * * ****** = a*g;
* ** * *** = b*g;
* * **** * * = c*g;
** * *
** * * * *** *
******** *** * *** ** *
*** ** ** *



return 0;

}
answered by (-122 points)
0 like 0 dislike
Hidden content!
* * ** * * * * *


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


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


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




* ** ( **** )

* * ***
******* *** ** ****** * * * * ** ***
* = * *
* = c - *
* = f * b - a * e ;
= 0 - *
*** * ** *

* ** * **** ** *** * = 0 - * * = 0 - * = * * *

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





* *** *** ** ** ****
* ** *
*
answered by (-276 points)
0 like 0 dislike
Hidden content!
#include *** *** * *





int main()

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








****** * **** *** * **** *** ** *** * * %.6f %.6f",a,b,c);

}
answered by (-162 points)
0 like 0 dislike
Hidden content!
** *** * * **


* * *
* ***** * * ** *** * * * * ** * t = 0, a, b, c, a1 , *


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




*** * * **** ** * ** * = y2 - y1 / * * y2 - x2 *
*** **** * * ** *** = * - * / * * - ** * **
*** * ** * * * = - * * - ** * *
* ***** * * * * = a /
*** * ** ***** * * * = b / c;
** * ** * ** * ** *** * *** ** *** ** *


* 0;
*
answered by (-105 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 <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!
* * * * * ***





int * *

{
** *** * * *** *
* * ** ***** * %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!
* * ** ** **


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


** ****** *


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




** ** * ( ** )

* * **
** * *** * * * * ** * * * * ** * * ** *
** = d -
= c - *
* = f * b - a * e ;


* * * *** *

* * * * * ** ** * = 0 - * * = * * ** - *



** * * * ** * *** ***** *
* *
answered by (-276 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.197.65
©2016-2026

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
| 3.6k 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
| 12.2k 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
| 9.8k 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
| 4.2k 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