Index: trunk/archive/pslib/include/psMatrix.h
===================================================================
--- trunk/archive/pslib/include/psMatrix.h	(revision 368)
+++ trunk/archive/pslib/include/psMatrix.h	(revision 371)
@@ -31,4 +31,5 @@
 psMatrixOp(psImage *out,		///< Matrix to return, or NULL
 	   const psImage *matrix1,	///< Matrix 1
+           const char *op,              ///< Operation to perform: "+", "-", "*"
 	   const psImage *matrix2	///< Matrix 2
     );