dependency algorithm

2007-11-14 Thread Tom Jones
Hi, Consider tuples of the above numbers in the form: (a,b) Suppose this relation means: a depends on b Given a list of tuples, I would like an algorithm to return the proper ordering of the elements...and if the ordering has a loop (which in this case, prevents a proper ordering), then

esvect and reflectbox

2007-10-06 Thread Tom Jones
Hi, I am trying to create a leftarrow of \vv{}. I thought I could just reflect the vector, but the solution has escaped me. Could someone help me out? [EMAIL PROTECTED] [EMAIL PROTECTED] \cleaders\hbox{$#4\mkern0mu#2\mkern0mu$}\hfill% \mkern-1.5mu#3$% } was replaced with [EMAIL P