0 like 0 dislike
4k 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 | 4k 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!
** ** ** ** *


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


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




* * ** *** * *** ** * ** = * - * / * * * y2 - x2 *
* * * * ** * * * *** = - *** / * * - * * *
** * * * *** *** *** = - * * * - * *


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


** *

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





int main(void)

{
*** ** * *** *** ****
** * * * * * * ** %f %f * * *** ** ** * *** * * ***** *** ** * *
* * ** - x2 == ** *** *** ** != 0)
* ** ** **
****** * * * ** = x1;
** * * *** * ******* ** = 0;
* ** * *** * * = -x1;
* **** **** *** * * *** * * ****** * %f * * ** **
* * ** * *
* ** ** ** * if(x1 - x2 != * * * ** * != 0)
** **** *
** **** * **** = (y1 - y2)/(x1 - x2);
* ******* ** * * * = y1 - (a * x1);
* * ** ** * * = -((a * x1) + c) / y1;
* * * * ** ** * * * **** * %f *** *
*** **
** ** if(x1 - x2 != * *** ** == 0)
* * *
* ****** *** * ** *** * = x2;
*** * *** * * *** * * * = 0;
* ** * ** *** * * *** = -x2;
*** * ** * ** * * ** *** * **** %f * * *******
** *
* *** * if(x1 - x2 == **** ***** * == 0)
**
*** * * ** ** ** ** * = 1;
** * * *** ******* * = 0;
* * * ** * **** * *** * * = 0;
* ***** * ** **** * * * * * %f * * *** ** *

 }
*** * * 0;

}
answered by (-100 points)
0 like 0 dislike
Hidden content!
**** *** *


* * * *** * *


* * *****


** * ** ** * ***




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


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


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


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




* *** * ** * ***** = * - ** / ** * y2 - x2 * *
* * ** **** **** ** * * *** = - / * * * y2 - * **
* ***** *** **** * * * ** = - *** * * - *** * *
** * ** * * * * ***** *** ** = a * -
* * ** * ***** ** ** ** = b * - *
* ** * * * ** ** *** * **** ** *** **** * * * *


* 0;

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


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


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




*** * ** * * ** * = ** - ** / * * y2 - x2 * **
* * *** * * * * *** *** **** = - * / * * y2 - ** *
* * *** ** * ** * * ** = - * ** - * **
* ** ***** * * * ** ** = a / - *
* *** * ** ***** * ** = b / -
*** * * * * ** **** ** **** ** ** ** * ** * * * **


* * 0;

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


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


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




* * * **** * * ***** * = * - * / * y2 - x2 * **
** * * * * * * ** * = * - ** / * y2 - * *
* ** *** * *** ** ***** = - * * - * * *
********* * * **** * * * * = a / - *
* * * ** **** * = b / -
* ** *** * * ******** *** ****** * *** * * ** ** * *


*** 0;

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





int *** **

{
* * * * ** ** **
** ** *** * %f %f ** ** ** * * * * * * * *
** * - x2 == 0,y1 != 0)
** ** * *
* * * ***** * * * ****** = x1;
*** * ********** * *** = 0;
*** * **** * **** = -x1;
* * * *** * *** ** * ** **** %f * * *
** ** * * * *
* * * * if(x1 - x2 != 0,y1 != 0)
*
* * *** * * * * = (y1 - y2)/(x1 - x2);
* *** * * * * = y1 - (a * x1);
* ** ** ******* = -((a * x1) + c) / y1;
* * ** * * ** **** ** * %f *** ***
* **
** ** * *** if(y1 == 0)
**
* ** * ** * ** * = x2;
** ***** * * ** * ** * = 0;
* * ** ** * ** * *** * *** = -x2;
* * ** *** ** * * *** ****** * %f ** **** * **
*** ****
* *** * 0;

}
answered by (-100 points)
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()

{
** * *** * * * *** x1,x2,y1,y2,m,a,b,c,c0;
*** * ** * ******* *** *** ** * * * ** *
* * * * *** * * ** ***** ***
** * * ****** ********* * * ** ** ** ** * ***
*** * * ** * * *** ** **** *** ** ** ** * ******

    m = (y1-y2)/(x1-x2);
* *** * ** *** ** **** ** *** ** ** ** *** *
* ****** ** ***** *** ** ***
* * ** ** * ***
** * ** ***** *** ****
** * * ***** *** * * * * ***
* **** ** *** * ** ** ** ** *** * **** ** * %f %f",m,-1.000000,c0);
* ** *** ** * ** * * **** if((y1-y2)%(x1-x2)!=0.000000)
*** * *** ** * * ** ****** * * * * ***** ** ** * ** * * * **
* * * ** ***** **** ** **** * * *** * ** *
*** * *** * * * **** * * * * * * *** * ** * *** ** * * * ** * *
*** * ** * * * * * ** * **** * * ** * * * * **** * * ***** * ** *** **** * *
* * * * * * **** ** ** * * ** ** * ** * * * * * ***** * * *** ** ** * ***** ****
** ***** * **** **** ** * ** ***** **** * * *


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


****** * * * ** * *** * *** %f %f",m*i,-1*i,i*c0);

return 0;

}
answered by (-102 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.17.98
©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
| 2.3k 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
| 6.9k 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
| 5.5k 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
| 2.4k 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