*/
-#include <math.h> // tanh.
+#include "beam.hh"
+
+#include <cmath> // tanh.
#include "interval-set.hh"
-#include "stencil.hh"
#include "directional-element-interface.hh"
#include "beaming.hh"
-#include "beam.hh"
#include "misc.hh"
#include "least-squares.hh"
#include "stem.hh"