If you run Matlab on an AMD processor, you aren't getting all the performance you're entitled to. Matlab refuses to execute certain code on AMD CPUs, even when those CPUs support the code in ...

The equation for the standard error of the mean is the sample standard deviation divided by the square root of the sample size.

Wikipedia This is a Matlab surface 3-D plot of a two-dimensional unnormalized sinc function (obviously!). We got it from Wikipedia.