```     NAME
glMultMatrixd, glMultMatrixf - multiply the current matrix
with the specified matrix

C SPECIFICATION
void glMultMatrixd( const GLdouble *m	)
void glMultMatrixf( const GLfloat *m )

PARAMETERS
m  Points to 16 consecutive values that are used as the
elements of a 4x4 column-major matrix.

DESCRIPTION
glMultMatrix multiplies the current matrix with the one
specified using m, and replaces the current matrix with the
product.

The current matrix is	determined by the current matrix mode
(see glMatrixMode). It is either the projection matrix,
modelview matrix, or the texture matrix.

EXAMPLES
If the current matrix	is C, and the coordinates to be
transformed are, v=(v,v,v,v).  Then the current
transformation is C x	v, or

(c  c	 c	c )	    (v )
|			      |	    |	  |
|c  c	 c	c |	    |v |
|c  c	 c	c |	 x  |v |
|			      |	    |	  |
(c  c	 c	c )	    (v )
Calling glMultMatrix with an argument	of
m=m,m,...,m	replaces the current transformation
with (C x M) x v, or

(c	 c  c   c )	  (m	 m  m   m )	  (v	)
|			    |	  |			    |	  |	|
|c	 c  c   c |	  |m	 m  m   m |	  |v	|
|c	 c  c  c |  x  |m	 m  m  m |  x  |v	|
|			    |	  |			    |	  |	|
(c	 c  c  c )	  (m	 m  m  m )	  (v	)
Where	'x' denotes matrix multiplication, and v is
represented as a 4 x 1 matrix.

NOTES
While	the elements of	the matrix may be specified with
single or double precision, the GL may store or operate on
these	values in less than single precision.

In many computer languages 4x4 arrays	are represented	in
row-major order. The transformations just described
represent these matrices in column-major order.  The order
of the multiplication	is important. For example, if the
current transformation is a rotation,	and glMultMatrix is
called with a	translation matrix, the	translation is done
directly on the coordinates to be transformed, while the
rotation is done on the results of that translation.

ERRORS
GL_INVALID_OPERATION is generated if glMultMatrix is
executed between the execution of glBegin and	the
corresponding	execution of glEnd.

ASSOCIATED	GETS
glGet	with argument GL_MATRIX_MODE
glGet	with argument GL_MODELVIEW_MATRIX
glGet	with argument GL_PROJECTION_MATRIX
glGet	with argument GL_TEXTURE_MATRIX

```