In digital signals the up and down transitions between high and low levels are called the rising edge and the falling edge. In digital systems the detection of these sides or action taken in response is termed edge-triggered, rising or falling depending on which side of rectangular pulse. A digital timing diagram is an example of a well-ordered collection of rectangular pulses.
Nikhil Prathapani (2020). Continuous gate and Discrete gate (https://www.mathworks.com/matlabcentral/fileexchange/42720-continuous-gate-and-discrete-gate), MATLAB Central File Exchange. Retrieved .