So there I was
hard at work, doing a difficult calculation involving stresses and strains, and I just couldn't get it to work out.

Several hours of puzzling later, I came upon a solution. I hadn't foreseen it, but if I summed ν, Poisson's ratio, with respect to time, I could get the calculation to work.

So there you have it: sum (ν dt) that I hadn't expected.

Contrived? Of course it's contrived. It's Thursday lunchtime after all!

Edit - It's not a vee, it's Greek. Now go and work it out...
( K2k6 has a proper job these days, Thu 4 Jun 2009, 13:21, Reply)