When creating the parametric plot
My three apps Goodgrapher Pro, PocketCas and QuickGraph+, together with Wolfram Alpha all give me the same result -luckily and not unexpected.
However, asking for a spherical plot
gives me two different outcomes in GoodGrapher Pro and QuickGraph+
The second is a weird one, but luckily a beautiful one as well. I can’t find out where the difference comes from.