16 Annotations 16 1 1 Commonly Used Blocks 1 19 2 Continuous time systems 2 11 20 Demonstration Blocks 20 3 3 Discontinuities 3 7 4 Discrete time systems 4 12 9 Electrical 9 23 6 Event handling 6 25 15 Implicit 15 3 10 Integer 10 11 5 Lookup tables 5 3 7 Mathematical Operations 7 25 8 Matrix 8 26 11 Port & Subsystem 11 7 14 Signal Processing 14 2 13 Signal Routing 13 22 17 Sinks 17 21 18 Sources 18 25 19 Thermo-Hydraulics 19 6 21 User-Defined Functions 21 11 12 Zero crossing detection 12 4