The book "Accuracy and stability of numerical algorithms" discusses all kinds of practical questions regarding numerical calculations. A "must" for anybody involved in this area, according to one (indepdendent) reader. Author: Nicholas J. Higham SIAM, Philadelphia, 1996, ISBN 0-89871-355-2 Recently, a second edition has appeared. [AM] [[...] anyone involved with numerical algorithms should at least know of it. <> Book | Mathematics