Write a program that will ask a user for how many numbers they would like to check. Then, using a for loop, prompt the user for a number, and output if that number is even or odd. Continue doing this as many times as the user indicated. Once the loop ends, output how many even numbers were entered and how many odd numbers were entered.

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.