what tasks do most operating systems perform?
.allocating ram to open programs
.indexing files and folders
.managing communication between hardware and software
.modifying spreadsheets
.naming word-processing documents
.providing icons users can click on to open programs
(there is more than one answer to this )

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.

This graph compares the cost of room and board at educational institutions in texas.

How can smart devices benefit businesses, organizations, and social communities in the global marketplace?