/*A program that uses a function to calculate a table of body mass index.*/
#include <iostream.h>
#include <conio.h>
#include <dos.h>
#include <stdlib.h>
#include <iomanip.h>

int calcBMI(double weight, double height);

int main()
{
	clrscr();
	double weight, height;
	int bmi, begw, endw, change, test, temp;
	do{
	cout<<"Enter Beginning Wt:";
	cin>>begw;
	cout<<"Enter End Wt:";
	cin>>endw;
	cout<<"Change By How much (10 is average)?";
	cin>>change;
	clrscr();
	test=endw-begw;
	test/=change;
	}while(begw>endw || test>=21);
	if (test>=21){
		cout<<"Too Many, try again";
		getch();}
	cout<<"Ht  ";
	for(weight=begw; weight<endw; weight+=change)
		cout<<setw(4)<<weight;
	for(height=58; height<=80; height++){
	cout<<endl<<height<<"  ";
	for(weight=begw; weight<endw; weight+=change){
	bmi=calcBMI(weight,height);
		cout<<setw(4)<<bmi;}
	}

	getch();
	return 0;
}





int calcBMI(double weight, double height)
{
	weight*=0.4536;
	height*=0.0254;
	double index=weight/(height*height);
	return int(index+0.5);
}