Thread: C++ math equation

So the get the area of the largest circle I can use the shortest side of the rectangular piece for the circle equation.

A= Pi * r^2 r being the shortest side / 2. If I get this right.

Looks correct to me.

Try writing the whole program by yourself, using the methods you know. Post back if you have any problems or are getting errors you don't understand.

Most likely, many methods used by some of the programmers here are beyond you and wouldn't be accepted by your prof. So use what you know and let us know if you hit a road block.

Well, like I said.. I will use the length ( not width, sorry) as my shortest side.

Ok ,this is what I have now. We also had to convert it to acre. That's why I divided it.

Code:

// Headers and Other Technical Items

#include <iostream>
using namespace std;

// Function Prototypes

void get_data(void);
void process_data(void);
void show_results(void);
void pause(void);

// Variables


double  length;
double  width;
double total_rectangular;
float pi;
float farmable_area;
float nonfarmable;

//******************************************************
// main
//******************************************************

int main(void)
  {
  get_data();
  process_data();
  show_results();

  return 0;
  }
  // Input 
  
  void get_data(void)
  {

  cout << "\nEnter the length of the property in feet --->: ";
  cin >> length;
  cout << "\nEnter the width of the property in feet ---->: ";
  cin >> width;
  
return;
  }
  // Process


void process_data(void)
  {
  pi = 3.14159265;
  total_rectangular = (length * width)/ 43560;
  
  farmable_area=pi*(width/2)*(width/2)/43560;
  
  nonfarmable = total_rectangular - farmable_area/43560;
  
  
  
  return;
  }



  // Output - 


void show_results(void)
  {
  cout << "\n";
  cout << "\nThe total area of the property is ---->: ";
  cout << total_rectangular;
  cout << "\nThe total area that is farmable is ---->: ";
  cout << farmable_area;
  
  pause();
  return;
  }

  
  

//******************************************************
// pause
//******************************************************

void pause(void)
  {
  cout << "\n\n";
  system("PAUSE");
  cout << "\n\n";
  return;
  }

Thank you for the hint!