0 like 0 dislike
2k 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)AD by (18k points)
ID: 18069 - Available when: 2016-12-01 18:30:00 - Due to: 2016-12-01 21:00:00

reshown by | 2k views

13 Answers

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



int main()

{
* * *** ** *** ** * x1 , y1 , x2 , y2;
**** * * ** * a, b , ac , bc , c1 ,c2 ,c ;
** * ***** ** **
** ** ******* * ** * ** ** * ** **** , &x1);

* * * * ** ** * * * ** ** * * , &y1);
****** ** * * ** ** * * * * , &x2);

* * * ** * * *** * ** * , &y2);
*** * **** *** ***
** * * * ** ** * *
* ** * *** * * *
* ** **** ** * ** ** *
** * * * * * **** *
** * * * **** **** * * **
** * **** *
* ** * *** * * * * ****

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

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

}
answered by (-186 points)
0 like 0 dislike
Hidden content!
#include<stdio.h>

#include<stdlib.h>



int main ()

{
*** * * * * *** * * ** * a=0,
* **** * * * * **** * * * ** ** ***** * * ***** **
** ** ** ** ** * * * *** ** ** ** *** *** * *****
* * * * ** ** ** * * ***** ** * * * * * ** *
* * * * * ** **** *** *** * * *** **** ****** ** ****** **** ***
** * **** ** * *** * *** ***** * ** * ** *** * * **** * *
* *** * * *** * ** * *** ** ** ** * *** **** * *
* ** * * ****** * * x=0,
* * * * * **** * * * * ***** ***** ***
* * * *** * *** *** ***** * * * * ** ** *** *
*** * ** * * * * **
** *** *** ** * ***** **** * *** *** &i1, &i2, &i3, &i4);
* *** * **** **
* * * ** ** ** = (i3 - i1);
* * * ** * ******** = (i4 - i2);
* *** ** ** ** * **
* ***** ** ** * * * ** <= x*x) && (f*f <= y*y);f++)
* * * * * * **** * ((x%f == 0) && (y%f == 0)){
*** *** ** * * * * = x/f;
* * *** ** *** * = y/f;
* * ***** * ***** *
**** * * ** ** * * * * * *
* * * * ** * * ** *** * = y;
* ** * * * ** ** ** = x;
* * * * ** * **** * **** = -(a*i1+b*i2);
* * ** ****
* * ** * * * * * * * * **** %.6f %.6f", a, b, c);

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

}
answered by (-170 points)
0 like 0 dislike
Hidden content!
#include ****** ** ***

#include * ** * *** * *



int main()

{
* *** * * ** *** * * x1 , x2 , y1 , y2 , a , b , c ;
* *** *** **
* *** ** **** ** ** **** **** %f %f ** **** *** * **** * * ** ** ** *
* * ** * ** * ** * = y2 - y1 ;
* * *** * * * ***** * = x1 - x2 ;
* * **** * * ****** ** ** = y1*(x2-x1)-x1*(y2-y1);
** *** * * *** * ** ** ** * * * **
*** * * * ** * **
* * * * * ********** * * * %f %f",a,b,c);
** * * * * *** * * **** ******
* **** * * * * ** * * 0;

}
answered by (-162 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.214.204
©2016-2025

Related questions

0 like 0 dislike
5 answers
[Exercise] Coding (C) - asked Dec 1, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 18074 - Available when: 2016-12-01 18:30:00 - Due to: 2016-12-01 21:00:00
| 1.3k views
0 like 0 dislike
96 answers
[Exercise] Coding (C) - asked Dec 1, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 18072 - Available when: Unlimited - Due to: Unlimited
| 9.2k views
0 like 0 dislike
67 answers
[Exercise] Coding (C) - asked Dec 1, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 18068 - Available when: 2016-12-01 18:30:00 - Due to: 2016-12-01 21:00:00
| 7k views
0 like 0 dislike
11 answers
[Exercise] Coding (C) - asked Dec 1, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 18065 - Available when: 2016-12-01 18:30:00 - Due to: 2016-12-01 21:00:00
| 2.1k views
0 like 0 dislike
0 answers
[Resource] asked Dec 1, 2016 in 2016-1 程式設計(一)AD by Shun-Po (18k points)
ID: 18084 - Available when: Unlimited - Due to: Unlimited
| 7 views
12,783 questions
183,442 answers
172,219 comments
4,824 users