One idea of PTC Mathcad gift

[ValeryOchkov]

PTC sends to it's VIP-customs one gift - a beer opener.

It will be better to sent not only a beer opener but a beer glass too.

But not one normal glass - a Mathcad-glass:

...a one pint beer glass (d=11.5 cm h=16.3 cm) with a minimal surface (mass) and with this engraving:

Can you give more interesting (more correct) engraving?

See too http://communities.ptc.com/message/193023

[ViktorKorobov]

Why r/h = 2*sqrt(2)?

See symbolics solution.

Viktor

[ValeryOchkov]

Thanks for the interest on the task but...

Sorry, not r/h (sqr(2)/4) but h/r (2*sqr(2))

Or sqr(2)*sqr(2)*sqr(2) - better to remember!

And for cone without a stand (a glass "Down the hatch") - sqr(2)