DT system properties: Time Invariance

[@subhajitdas298]

Very simple and helpful tutorial. Thanks. please upload more.

[@taracat862]

What about other properties? :(

[@kdcadet]

We just need to solve the equation (n - n0 - 1) ^2 = (n - 1)^2 - n0 for n0. If there are 0 solutions, the system is Not time invariant If there are countably many solutions, the system is conditionally time invariant. If there are infinite solutions, i.e., for all values of n0, the system is time invariant. Is this correct?