Hi, I have got invaluable help from several people of this list. Unfortunately I couldn't guess the email of some of you.
So, many thanks to all who have helped me. Merry Christmas and a Hapy New Year to you all. (Perhaps someone comes up with a means to say 'thank you' without 'polluting' the list for that and without sacrificing privacy of the email addresses.) Helmut. -- Helmut Jarausch Lehrstuhl fuer Numerische Mathematik RWTH - Aachen University D 52056 Aachen, Germany --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]