What does delaying a signal mean? Graphically? Mathematically? Is it, advancing to the next numbers, or using the previous numbers? Suppose i have $x[n] = \{0,1,2,3,4,5\}$ and i use $x[n-m]$ (example $x[n-3]$, what actually happens behind the scenes)? I can't get the gist and main concept behind.. thanks . Lesson: z transforms, laplace, transforms.
Our topic deals with z transforms and an introductory to dsp.