Sampled aperiodic rectangle
y = rectpuls(t)
y = rectpuls(t,w)
y = rectpuls(t) returns a continuous, aperiodic, unity-height rectangular pulse at the sample times indicated in array t, centered about t = 0 and with a default width of 1. Note that the interval of non-zero amplitude is defined to be open on the right, that is, rectpuls(-0.5) = 1 while rectpuls(0.5) = 0.
rectpuls is typically used in conjunction with the pulse train generating function pulstran.