Question

C++ code for CIS054

Create a program that uses a function to determine the length of a line by inputting the X,Y coordinates of the line endpoints. Show the result with a precision of four decimal places. The function prototype is to be specified as follows:

    double LengthOfLine (double X1, double Y1, double X2, double Y2); // returns length of line

by using this code:

#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;

int main(int argc, char* argv[])
{
   double X1, Y1, X2, Y2, length;
   cout << "Enter X1 Y1 X2 Y2 seperated by spaces: ";
   cin >> X1 >> Y1 >> X2 >> Y2;
   length = LengthofLine(X1, Y1, X2, Y2);
   cout << setiosflags(ios::fixed | ios::showpoint);
   cout << "The length of the line is : " << setprecision(2) << length << endl;
   return 0;
}

double LengthofLine(double X1, double X2, double Y1, double Y2)
{
   double a, b, c;
   a = X2 - X1;
   b = Y2 - Y1;
   c = sqrt((a * a) + (b * b));
   return c;
}

Answer 1

Ans

code:-

#include <iostream>

#include <iomanip>

#include <cmath>

using namespace std;

//function prototype

double LengthofLine(double, double, double, double);

int main(int argc, char* argv[])

{

double X1, Y1, X2, Y2, length;

cout << "Enter X1 Y1 X2 Y2 seperated by spaces: ";

cin >> X1 >> Y1 >> X2 >> Y2;

length = LengthofLine(X1, Y1, X2, Y2);

cout << setiosflags(ios::fixed | ios::showpoint);

//precision of 4

cout << "The length of the line is : " << setprecision(4) << length << endl;

return 0;

}

//Take X1,Y1,X2,Y2

double LengthofLine(double X1, double Y1, double X2, double Y2)

{

double a, b, c;

a = X2 - X1;

b = Y2 - Y1;

c = sqrt((a * a) + (b * b));

return c;

}

1 #include <iostream> 2 #include <iomanip> 3 #include <cmath> 4 using namespace std; 5 //function prototype|| 6 double LengthofLine(double, double, double, double); 7 int main(int argc, char* argv[]) 8 { 9 double X1, Y1, X2, Y2, length; cout << "Enter X1 Y1 X2 Y2 seperated by spaces: << 11 cin >> X1 >> Y1 >> X2 >> Y2; 12 length LengthofLine(X1, Y1, X2, Y2); 13 cout << setiosflags(ios::fixed | ios:: showpoint); 14 //precision of 4 cout << "The length of the line is : setprecision(4) « length << endl; 16 return 0; 17 } 18 //Take X1,Y1, X2, Y2 19 double LengthofLine(double X1, double Y1, double X2, double Y2) 20 { 21 double a, b, c; 22 a = X2 - X1; 23 b = Y2 24 C = sqrt((a * a) + (b * b)); 25 return c; 26 } Y1;

If any doubt ask in the comments.