t),
cos(t), and sums,
products and delays of these signals. Examples of input signal entries are
Permitted input signals are right-sided (zero for t < 0) time
signals composed of unit steps, u(t), real exponentials,
exp(at), trigonometric functions, sin(t),
cos(t), and sums,
products and delays of these signals. Examples of input signal entries are
u(t)
2.5*exp(-2*(t-3))*u(t-3)
(9.8/2)*sin(2*t-pi/3)*exp(-t+1)*u(t-2)
(t^0.5)*(sin(t)+cos(2*t))*u(t)
sin(t)+2 defaults to (sin(t)+2)*u(t)
sin(t)*u(-t-2) not right-sided: defaults to 0
Fine Print: For a variety of reasons it is not possible to definitively
decide that the properties hold: only a restricted class of input signals
can be applied, all inputs are zero before t = 0, response plots are shown
on a finite time axis, and so on. Assume these issues are benign, and use a
reasonable number of tests to address each property. It is strongly
recommended that you use a color monitor to view this demonstration.