Sorry I took too long. It has been hectic this semester. The logic is somewhat complicated withregard to global and local here, but it is to ensure that boundary values are put in on output. Iam not sure how to make it more transparent, but I am willing to take suggestions.
-- Dr Adrian Croucher Senior Research Fellow Department of Engineering Science University of Auckland, New Zealand email: a.croucher@auckland.ac.nz tel: +64 (0)9 923 84611