Problem with ramp change in waveforms

I am simulating a circuit in Simulink. I also have to use MATLAB function block along with circuit elements. I want the output of myMATLAB function to cahnge instantly between its values but instead when I zoom in the output changes from one value to another in a ramp kind of way. How can I force my signals to change instantly?

Answer 1

[Sam Chak]

You can force the signal to 'jump' instantly at the point of discontinuity by using the sign function.

[Sam Chak]

Else, if you prefer linguistic instruction, you can use the If–Else conditional statement.