PROGRAM 29


//  FILE NAME:  PROG29.CPP     PROGRAMMER NAME:  ANTHONY F. ORTIZ
//  THIS PROGRAM CREATES A FUNCTION CALLED MAGNITUDE THAT RETURNS THE SQUARE
//  ROOT OF THE SUM OF SQUARES.  THE FUNCTION CAN HAVE ONE, TWO, OR THREE
//  PARAMETERS.

#include 
#include 
#include 
#include 

double magnitude (char * msg, ... );
pause ();

int main ()
{
    clrscr ();
    cout << magnitude ("MAGNITUDE: ", -4.0) << endl << endl;
    cout << magnitude ("MAGNITUDE: ", 3.0, -4.0) << endl << endl;
    cout << magnitude ("MAGNITUDE: ", 1.0, 2.0, 2.0) << endl << endl;
    pause ();
    return 0;
}

double magnitude (char * msg, ... )
{
    double x, y, z;
    va_list pa;
    va_start (pa, msg);
    x = va_arg (pa, double);
    y = va_arg (pa, double);
    z = va_arg (pa, double);
    va_end (pa);
    cout << msg;
    return sqrt (x * x + y * y + z * z);
}

pause ()
{
    cout << "PRESS ENTER KEY TO CONTINUE ..... ";
    getch ();
    return 0;
}

//  OUTFILE:  PROG29.OUT

MAGNITUDE: 4

MAGNITUDE: 5                                                                    
                                                                                
MAGNITUDE: 3                                                                    
                                                                                
PRESS ENTER KEY TO CONTINUE .....




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