Sewell (mathematics, Texas A&M University) offers an accessible introduction to the numerical solution of linear algebraic problems. Upper-level undergraduates and graduate students will gain a solid theoretical foundation for all of the methods discussed in the text and learn to write FORTRAN90 and MATLAB programs to solve problems. This second edition includes a new chapter on modern supercomputing and parallel programming, plus MATLAB versions of all the FORTRAN90 programs, more examples and exercises, and an appendix with answers.