ABSTRACT
In Chapter 5, we studied linear systems of two equations in two unknowns. A whole chapter for such a humble task seems like a bit of overkill-its main purpose was really to lay the groundwork for this chapter. Linear systems arise in virtually every area of science and engineer-
ing-some are as big as 1,000,000 equations in as many unknowns. Such huge systems require more sophisticated treatment than the methods introduced here. They will allow you to solve systems with several thousand equations without a problem.
