0 like 0 dislike
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 | 1k 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:108.162.216.251
©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
| 507 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
| 539 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