Watch out

The decimal form of the system of equations used in the previous section is

This system which appears in Johnson and Riess' numerical analysis book has a unique solution of (1, 3, 2) as we saw in the previous section. In this section we will vary the number of Digits that Maple uses and solve the system using decimal coefficients. We will see a variety of results numerically and graphically for this "ill-conditioned" system.

with 5 digits

with 6 digits

with 7digits

with 6 digits and partial pivoting

Summary including 8, 10, and 15 digits