# Maple ICE

- Open Maple and read in a data file with two columns, found at /usr2/test300/hal.dat.
- Load the LinearAlgebra package.
- Make a vector called
`year`that contains the first column of the array you read in step 1. - Make a vector called
`y`that contains the second column of the array you read in step 1. - Create a matrix whose first column is all ones; whose second column is the year vector, and whose third column is a vector whose entries are the squares of those in the year vector. Call the matrix A.
- Solve
*A*to find^{T}Ax = A^{T}y*x*. - Define
`model`= Ax. - Plot the year vector against the y vector in a point style, and the year vector against the model vector in a line style, all on the same set of axes.

A solution for the
final is available.