[math-fun] Snuggling steinmetzes wrapup(?)

NeilB's typically expert graphics: gosper.org/steinmetz-diffuse.png gosper.org/steinmetz-glossy.png And a spherical neighborhood of the smothered corner: http://gosper.org/steincorn.png Privately, Dan admitted this was news to him too. I.e., his solid angle question wasn't slyly Socratizing us. --rwg