] Create a trigger that is released when the price of a desktop is updated. The trigger should ensure that there is no record of a lower priced desktop with the same speed. That is, when an updated price is not the lowest among the desktop with the same speed, then undo the update.

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.

How do we use the sumif formula (when dealing with different formats) ?

Someone plzz me which of these defines a social search? a. asking a search engine a question that is answered by a real person on the other sideb. modifying search results based on popularity of a web pagec.modifying search results based on a ranking of a web page