**4. SagWave programming**

The concept of SagWave programming shown in Fig. 13. Form the 3th topic, GUIDE will create an M-File with callback function prototypes. The callback function was response to an event by MATLAB code. There must be a callback to implement the function of each graphical component on the GUI. Now we must be programming the callback to implement the function of each component on the SagWave.
