Recent content by jti5017

Homework Statement find z transform of: x[n] = (1 / n!) *u[n] u[n] is the unit step Homework Equations z transform equationX(z) = Ʃ x[n] * z-n summation is from -∞ to +∞ The Attempt at a Solutioncancel the u[n] by changing the bounds of the summation now it is from 0 to +∞It's at this...

Just curious, how does one switch from the frequency version of a Fourier transform to the ω version. I know that ω = 2∏*f but looking at the variations of the table it seems like there is more than just this difference

thanks for the reply! it has to be true for all n to be periodic by definition i believe. i mean, I've personally never heard of a sinusoidal period being a function of time (in this case discrete time) And there are an infinite number of 'N's (provided it is periodic) but I am...

well in discrete time, x[n] will not be defined for non integer arguments

Homework Statement Determine whether x[n] is periodic, if so find the fundamental period. ps forgive my notation, I'm new to physics forums and haven't had a chance to figure out the exact notation syntax yet.x[n]=cos(π/6 * n^2) The Attempt at a Solution x(n) is periodic when x(n) = x(n...