0 like 0 dislike
972 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 | 972 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:172.70.130.171
©2016-2024

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
| 499 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
| 1.7k 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
| 1.2k 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
| 527 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
183,443 answers
172,219 comments
4,824 users