[Please reply directly to Fred, not the list.] Apologies for the OT character of this post, but I know of nowhere else to ask: How do I get Wolfram Alpha to draw me a picture of the 8-eared 2-sphere, radius 2, given, say, by max(( x^2 + y^2 ), ( x^2 + z^2 ), ( y^2 + z^2 )) = 4 ? Many thanks! -- Fred [For admin and other information see: http://www.mta.ca/~cat-dist/ ]