/*
 * Program to compute hypotenuse of a right triangle (sqrt(a*a + b*b)).
 *
 * Input:  floating-point numbers a, b.
 *
 * Output:  sqrt(a*a + b*b)
 */
#include <stdio.h>
#include <math.h>

/* Computes hypotenuse of right triangle with sides a and b, and returns it */
float hypotenuse(float a, float b) {
	/* all of these work */
	return sqrt(a*a + b*b); 
	/* return sqrt(pow(a, 2) + pow(b, 2)); */
	/* return pow((pow(a, 2) + pow(b, 2)), 0.5); */
}

/* Main program */
int main(void) {

	float input1;
	float input2;

	printf("enter two sides of a right triangle:\n");

	scanf("%f", &input1); 
	scanf("%f", &input2);

	printf("hypotenuse for sides %f and %f is %f\n", 
			input1, input2, hypotenuse(input1, input2));
	return 0;
}