What is the purpose of a format painter in Word?

The source manager dialog box allows you to create sources, copy sources created and used in all the documents, modify sources an add bibliographic information to placeholders. true or false

When running anti-virus software , what could be a reason where recipitent is not guaranteed that data being streamed will not get interrupted?

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.