vector_cross_product

#include<stdio.h>

typedef struct {
  double x,y,z;
} Vektor3d;

Vektor3d vektorski_proizvod(Vektor3d v1, Vektor3d v2){
  return (Vektor3d){v1.y*v2.z-v1.z*v2.y, v1.z*v2.x-v1.x*v2.z, v1.x*v2.y-v1.y*v2.x};
}
int main(){
  Vektor3d v=vektorski_proizvod((Vektor3d){5,-2,3},(Vektor3d){1,3,-4});
  printf("%lf %lf %lf",v.x,v.y,v.z);
  return 0;
}