Recent content by Jxs63J

Mr Vodka: What you are showing me is what I finally figured out last night. You have basically set this out as a Monge Patch (using the nomenclature of the text) which then allows calculation of the fundamental forms prior to solving for k1 and k2. This requires some plowing through, which...

Others above may have said this, but let u = 2x + 1. Then x = (u - 1) / 2. You then get 2 easy integrals.

Homework Statement Show the principal curvatures on x sin z - y cos z = 0 are +-1/(1 + x^2 + y^2)