learn by being trained through extensive exposure to vast numbers of images, text fragments, handwriting samples, recordings of human speech, email messages, and other types of data processed by the system.

What are procedures that keep a data base current

How do you take a green screen out of the video while editing?

Least square fit to polynomial write a function leastsquarefit3pol that solves a linear system of equations to find a least squares fit of a third order polynomial to an experimental data set given as two row arrays. the function leastsquarefit3pol must explicitly solve a set of linear equations and cannot use polyfit. there should be no restriction on the size of the problem that can be solved.