Index: dam engine/branches/Initial Source/Deltares.DamEngine.Data/Standard/ComputeDoubles.cs
===================================================================
diff -u -r303 -r316
--- dam engine/branches/Initial Source/Deltares.DamEngine.Data/Standard/ComputeDoubles.cs	(.../ComputeDoubles.cs)	(revision 303)
+++ dam engine/branches/Initial Source/Deltares.DamEngine.Data/Standard/ComputeDoubles.cs	(.../ComputeDoubles.cs)	(revision 316)
@@ -96,5 +96,19 @@
 
             return false;
         }
+
+        /// <summary>
+        /// Determines whether the specified value is nearly zero.
+        /// </summary>
+        /// <remarks>Uses a tolerance of 1e-3.</remarks>
+        public static bool IsZero(this double aValue1)
+        {
+            if (Math.Abs(aValue1 - 0.0) < cEpsilon)
+            {
+                return true;
+            }
+
+            return false;
+        }
     }
 }
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