dot_product, dot_product_f - Calculates the dot product. Allegro game programming library.
#include <allegro.h> fixed dot_product(fixed x1, y1, z1, x2, y2, z2); float dot_product_f(float x1, y1, z1, x2, y2, z2);
Calculates the dot product (x1, y1, z1) . (x2, y2, z2), returning the result.
cross_product(3alleg), normalize_vector(3alleg), exstars(3alleg)