/* 
 * Program to try out 3D vectors.
 */
#include <stdio.h>

#include "3d-vectors.h"

int main(void) {
	printf("enter three numbers\n");
	double a, b, c;
	if (scanf("%lf %lf %lf", &a, &b, &c) != 3) { 
		printf("input must be numeric\n");
	       	return 1; 
	}

	three_d_vec v1 = { a, b, c };
	three_d_vec v2 = { a + 1, b + 2, c + 3 };

	three_d_vec sum = vec_add(v1, v2);
	three_d_vec multiple = vec_scalar_mult(2, v1);

	printf("v1 is ");
	vec_print(v1, stdout);
	printf("\n");

	printf("v2 is ");
	vec_print(v2, stdout);
	printf("\n");

	printf("sum is ");
	vec_print(sum, stdout);
	printf("\n");

	printf("multiple is ");
	vec_print(multiple, stdout);
	printf("\n");

	printf("length of v1 is %f\n", vec_length(v1));

	return 0;
}