Aretail bank is launching a new credit card. what will be embedded in the card for improved security

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.

In my email i got a message it says a quick message and in message details on who its from its says nicole and under nicole is [email protected] -

What is a point-in-time measurement of system performance?