Thread: How do I fix these Errors??

Hello everyone. I've been trying to figure out how to fix these errors for about two hours now and I have yet to figure out how. Here are the errors I get:
http://www.carbongraphx.com/errors.jpg
Here's my program:

Code:

//fun.cpp
//Jason Smith
/*This program converts Celsius to Fahrenheit values, finds volume of a given
  sphere, and the hypotenuse of a given right triangle*/

#include <iostream.h>
#include <iomanip.h>
#include <math.h>


const float PI = 3.14159;
double ctoF(double celsius);
double volume(double radius);
double hypotenuse(double firstleg, double secondleg, double c);
double ftoC(double fahr);
void intro();

int main()
{
	double celsius, fahr, radius, firstleg, secondleg;
	intro();
	cout <<"Enter a Celsius temperature to be converted to Fahrenheit: ";
	cin >>celsius;
	cout <<endl;
	cout <<"Enter a Fahrenheit temperature to be converted to Celsius: ";
	cin >>fahr;
	cout <<endl;
	cout <<"Enter the radius of the sphere: ";
	cin >>radius;
	cout <<endl;
	cout <<"Enter the legs of the right triangle with a space between them: ";
	cin >>firstleg >>secondleg;
	cout << setiosflags(ios::right|ios::fixed|ios::showpoint);
	cout << setprecision(2);
	cout << celsius <<" degress C = " << ctoF(celsius) <<" degrees F."<<endl;
	cout << fahr <<" degrees F = " << ftoC(fahr) <<" degrees C."<<endl;
	cout <<"The volume of a sphere of radius "<<radius<<" is "<< volume(radius) <<".";
	cout <<"The hypotenuse of a right triangle of legs "<< firstleg <<" and "<< secondleg
	     <<" is "<< hypotenuse(firstleg, secondleg) <<".";		
}

void intro()
{
	cout << "Program: Fun.CPP";
	cout << "By Jason Smith on October 20, 2002";
	cout <<endl;
	cout << "**This program converts Celsius to Fahrenheit values,\n";
	cout << "finds the volume of a given sphere, and the hypotenuse \n";
	cout << "of a given right triangle.\n";
	cout << "***LET THE FUN COMMENCE!!***";
	cout <<endl;
	cout <<endl;
}

double ctoF(double celsius)
{
	return ((1.8*celsius) + 32);
}

double ftoC(double fahr)
{
	return (5/9 * (fahr - 32));
}

double volume(double radius)
{
	return (4/3*(PI * (double pow(double radius, double 3)));
}

double hypotenuse(double firstleg, double secondleg, double c)
{
	c = (double pow(double firstleg, double 2)) + (double pow(double secondleg, double 2));
	return (double sqrt(double c));
}

Any help would be greatly appreciated. Thanks.
Jason


Code tags added by kermi3

You have many problems in your program...
For example:
in addition to what moi said...
You should return a value in the main()...
What do you mean by this:

return (double sqrt(double c));
double pow(double secondleg, double 2)

???
I don't get it, what are you trying to do?

thanks everyone for your help.
ammar:
the 'pow' function is the power function, which takes double x to the power of double y ex: double pow(double x, double y) but i can see that, yes, i messed up the order there.

thanks everyone.

I thought i'll comment on this:

Code:

double ftoC(double fahr)
{
return (5/9 * (fahr - 32));
}

This won't work unless you put 5.0/9.0, it is looking for double type, but all it sees are int, so it'll skip them.

Val