UNTI STEP FUNCTION

The Heaviside Unit Step Function defines functions encountering ideal On/Off

The Heaviside unit step function turns on a function at t0

The switch (change) at t0 is in fact an impulse, i.e., the Dirac delta function.


DIRAC DELTA OR UNIT IMPULSE FUNCTION

The Heaviside Unit Step Function defines functions encountering ideal On/Off

The Dirac delta function works like a sampling gate at t0,

The effect of the sampling gate accumulated through the domain t is the unit step function.