What containsthe computers brain the central processing unit (cpu)?

How do i get the most points, without any effort?

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.

Which of the following best describe how the depth-limited search works. a normal depth-first search is performed but the number of ply/depths is limited. a normal breadth-first search is performed but the number of ply/depths is limited. a normal breadth-first search is performed but values above a specific value will be ignored. a normal depth-first search is performed but values above a specific value will be ignored.