//a program to demonstrate functions and while loop

#include<stdio.h>
#include<math.h>

void func(double x);		/*prototype*/

main()
{
	double n;
	n=0.0;
	while(n<10){
		printf("n = %0.3f\n",n);
		func(n);
		n=n+0.01;
	}
	
}


/*given a double precision real number the function returns statment
lettting the user know if it is 1*/

void func(double x){

	double z;
	z=pow(sin(x),2)+pow(cos(x),2);
	printf("z = %0.20f\n",z);
	if(z<1) {
	printf(" z is less than 1\n\n");
	}
	else if(z>1){
	printf(" z is greater than 1\n\n");
	}
	else{
	printf(" z is equal to 1\n\n");
	}

}