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matrix_to_quat(3)		 Allegro manual 	       matrix_to_quat(3)

NAME
     matrix_to_quat  -	Constructs  a quaternion from a rotation matrix. Allegro
     game programming library.

SYNOPSIS
     #include <allegro.h>

     void matrix_to_quat(const MATRIX_f *m, QUAT *q);

DESCRIPTION
     Constructs a quaternion from a rotation matrix.  Translation  is  discarded
     during the conversion. Use get_align_matrix_f() if the matrix is not ortho-
     normalized, because strange things may happen otherwise.

Allegro 			  version 4.4.3 	       matrix_to_quat(3)

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