1 files changed, 5 insertions, 0 deletions
diff --git a/mg2d_boundary.h b/mg2d_boundary.h
index 910249f..752661d 100644
--- a/mg2d_boundary.h
+++ b/mg2d_boundary.h
@@ -35,6 +35,11 @@ enum MG2DBCType {
      * The unknown function is mirrored across the boundary
      */
     MG2D_BC_TYPE_REFLECT,
+
+    /**
+     * The unknown function falls off as C / x on the boundary.
+     */
+    MG2D_BC_TYPE_FALLOFF,
 };
 
 /**