Jamie is using the UNIX file system to work on his computer. He puts a dot before the file extension to separate it from the filename. How does the UNIX file system interpret the dot?
A.
as a file extension
B.
as a command
C.
as a character in the file name
D.
as a folder name
E.
as a drive

This technology is used to produce high-quality documents that look good on the computer screen and in print.

Which action is good business etiquette? a. switching your cell phone off before you enter a meeting b. keeping your cell phone on low volume before you enter a meeting c. setting a pleasant ring tone on your cell phone before you enter a meeting d. setting a standard ringtone on your cell phone before you enter a meeting

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.