math: matrix: Add copy procedures.

1 files changed, 27 insertions, 0 deletions

diff --git a/doc/api.texi b/doc/api.texi
index e51a81d..9d743b4 100644
--- a/doc/api.texi
+++ b/doc/api.texi
@@ -1023,6 +1023,14 @@ equivalent to the following code:
 Return @code{#t} if @var{obj} is a 3x3 matrix.
 @end deffn
 
+@deffn {Procedure} matrix3= m1 m2
+Return @code{#t} if @var{m1} is the same matrix as @var{m2}.
+@end deffn
+
+@deffn {Procedure} matrix3-copy matrix
+Return a new 3x3 matrix that is a copy of @var{matrix}.
+@end deffn
+
 @deffn {Procedure} matrix3* . matrices
 Return a new 3x3 matrix containing the product of multiplying all of
 the given @var{matrices}.
@@ -1057,6 +1065,10 @@ Return the inverse of @var{matrix}.
 The following procedures perform in-place, destructive updates to 3x3
 matrix objects:
 
+@deffn {Procedure} matrix3-copy! src dest
+Copy the contents of matrix @var{src} to @var{dest}.
+@end deffn
+
 @deffn {Procedure} matrix3-identity! matrix
 Modify @var{matrix} in-place to contain the identity matrix.
 @end deffn
@@ -1124,6 +1136,14 @@ equivalent to the following code:
 Return @code{#t} if @var{obj} is a 4x4 matrix.
 @end deffn
 
+@deffn {Procedure} matrix4= m1 m2
+Return @code{#t} if @var{m1} is the same matrix as @var{m2}.
+@end deffn
+
+@deffn {Procedure} matrix4-copy matrix
+Return a new 4x4 matrix that is a copy of @var{matrix}.
+@end deffn
+
 @deffn {Procedure} matrix4* . matrices
 Return a new 4x4 matrix containing the product of multiplying all of
 the given @var{matrices}.
@@ -1175,6 +1195,13 @@ Return a new 4x4 matrix that represents a rotation about the Z axis by
 @var{theta} radians.
 @end deffn
 
+The following procedures perform in-place, destructive updates to 4x4
+matrix objects:
+
+@deffn {Procedure} matrix4-copy! src dest
+Copy the contents of matrix @var{src} to @var{dest}.
+@end deffn
+
 @deffn {Procedure} matrix4-identity! matrix
 Modify @var{matrix} in-place to contain the identity matrix.
 @end deffn