Zero division trigger not needed - should actually just return the belief unchanged.

src/noComparisonSimulation/helperFunctions.cpp

@@ -74,7 +74,8 @@ py::array_t<double> update_on_evidence(int evidence_id, double distrust,
 
         if (denominator == 0)
         {
-            throw std::runtime_error("Division by zero condition");
+            /* Inconsistancy between distrust and belief so don't update*/
+            return belief;
         }
 
         for (int i = 0; i < belief_buf.size; ++i)