Am 24.07.2013 09:33, schrieb scott:

> So as clipka says, I don't think there is any 4D shape you can define
> that you can "hyper-slice" to get either a block or a sphere. But that
> isn't exactly a proof - feel free to experiment, look forward to your
> images in p.b.i :-)

Well, I'm actually pretty sure there are such shapes - but they would be 
too irregular to deserve being called a "4D cylinder".

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