In this amended version of the out-of-print work first published by Prentice-Hall in 1980, Parlett (U. of California, Berkeley) offers a resource on these useful calculations behind mathematical models in diverse disciplines. With matrix theory as the framework for computing eigenvalues, the discussion and exercises cover the basic and advanced mathematical knowledge base. Inexact arithmetic has been corrected, and "slicker proofs" have been included in this edition. Annotation c. by Book News, Inc., Portland, Or.