Thanks Jay. I'll have a look.

>Martin --
>
> The one book I had on linear programming from a programming perspective was sold -- thought I could do as well from the other texts as the Fortran code in it.
>
>Here are a couple web references that may give you some options -- both code libraries (in C/Pascal) or books more contemporary than I've worked with.
>
>Linear Programming FAQ -- very useful references for code available on the web and books.
>http://www-unix.mcs.anl.gov/otc/Guide/faq/linear-programming-faq.html
>
>Linear Programming -- introduction
>http://www.cs.engr.uky.edu/~lewis/cs-heuristic/text/integer/linprog.html
>
>Short Course in Linear Programming
>http://www.cudenver.edu/~hgreenbe/courseware/LPshort/intro.html