--- trunk/OOPSE-2.0/src/math/RectMatrix.hpp	2005/01/12 22:41:40	1930
+++ trunk/OOPSE-2.0/src/math/RectMatrix.hpp	2005/01/13 19:40:37	1937
@@ -48,7 +48,7 @@
 
 #ifndef MATH_RECTMATRIX_HPP
 #define MATH_RECTMATRIX_HPP
-
+#include <math.h>
 #include <cmath>
 #include "Vector.hpp"