--- /dev/null
+
+//////////////////////////////////////////////////////////////////////////////////
+// This program is free software: you can redistribute it and/or modify //
+// it under the terms of the version 3 of the GNU General Public License //
+// as published by the Free Software Foundation. //
+// //
+// This program is distributed in the hope that it will be useful, but //
+// WITHOUT ANY WARRANTY; without even the implied warranty of //
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
+// General Public License for more details. //
+// //
+// You should have received a copy of the GNU General Public License //
+// along with this program. If not, see <http://www.gnu.org/licenses/>. //
+// //
+// Written by Francois Fleuret //
+// (C) Ecole Polytechnique Federale de Lausanne //
+// Contact <pom@epfl.ch> for comments & bug reports //
+//////////////////////////////////////////////////////////////////////////////////
+
+#ifndef NORMAL_LAW_H
+#define NORMAL_LAW_H
+
+#include "misc.h"
+
+class NormalLaw {
+public:
+ ~NormalLaw();
+ scalar_t expectation, variance, normalizer;
+ scalar_t log_proba(scalar_t x);
+ scalar_t proba(scalar_t x);
+ void set(scalar_t e, scalar_t v);
+};
+
+#endif