Comments from Professor Gene Golub (Stanford), Professor Frank Luk (Cornell), and specially Hongyuan Zha (Stanford) helped me identify the literature relevant to this undertaking. The students at SEP helped me get acquainted with SEP's computing environment. Last, but not least, Biondo Biondi (Thinking Machines) has provided guidance to achieve current performance levels, and suggestions to obtain substantially improved performance. Thank you all for your comments, explanations, and suggestions.