>>11941888The study of linear algebra demands familiarity with algebra, analytic geometry, and
trigonometry. Occasionally you will find examples and exercises requiring a knowledge of
calculus; these are clearly marked in the text.
Early in your study of linear algebra you will discover that many of the solution
methods involve dozens of arithmetic steps, so it is essential to strive to avoid careless
errors. A computer or calculator can be very useful in checking your work, as well as in
performing many of the routine computations in linear algebra.
