debian man page for get_vector_rotation_quat

get_vector_rotation_quat(3alleg4)				  Allegro manual				 get_vector_rotation_quat(3alleg4)

NAME
       get_vector_rotation_quat - Constructs a quaternion to rotate points around a vector. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       void get_vector_rotation_quat(QUAT *q, float x, y, z, float a);

DESCRIPTION
       Constructs a quaternion that will rotate points around the specified x,y,z vector by the specified angle (given in binary, 256 degrees to a
       circle format).

Allegro 							   version 4.4.2				 get_vector_rotation_quat(3alleg4)