We were discussing math, not grammar so it's not really that ironic. I also wrote the word "cuz" and "ROFL" in one of my posts on this thread -- surprised you didn't pick up me not giving too many craps how I write. Anyway, genuine thanks for pointing that out since I learned that it is improper usage of the word and I think I've used it in emails at work before....oops. Besides, I am just a dumb, unwashed white collar worker so I shouldn't be expected to know these things. Suresh, OTOH, is a learned man and now that he is a Bionic Poster the standards for him will be higher.