1 files changed, 1 insertions, 1 deletions
diff --git a/Project/Sum.h b/Project/Sum.h
index 49059f0..f3ab4c6 100644
--- a/Project/Sum.h
+++ b/Project/Sum.h
@@ -22,7 +22,7 @@ public:
     virtual std::vector<Signal> GetSignalList() const { return m_signalList; }
     virtual void SetSignalList(std::vector<Signal> signalList) { m_signalList = signalList; }
     
-    virtual bool Solve(double input);
+    virtual bool Solve(double input, double timeStep);
     
     virtual void UpdatePoints();
     void AddInNode();