# Linear Algebra: Theory and Applications
# Ward Cheney & David Kincaid
# JBPub.com (c) 2008 
# File: exp724.map
# Example 7.2.4

with(LinearAlgebra):
A := Matrix([[1,4],[2,5],[3,6]]);
b := Vector([1,1,-1]);
E := Transpose(A).A;
f := Transpose(A).b;
G := Matrix(E,f);
ReducedRowEchelonForm(G);