For the following networking equipment, explain each in a manner which clearly distinguishes it from the rest, where possible giving advantages and disadvantages. data connections
a. hub (4 marks)
b. router (4 marks)
c. switch (4 marks)
the internet

Why should characters such as / \ " ' * ; - ? [ ] ( ) ~ ! $ { } < > # @ & | space, tab, and newline be avoided in file names?

How can i delete permalinks from a word press site?

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.