Re: request please for an ascii drawing of a saddle and a huge ball that would fit into the saddle; for math

_.-In alt.ascii-art, a_plutonium wrote the following -._
> This is a ascii art for math and sci.math. Can someone please draw a
> saddle and then draw a huge ball that
> would sit on top of the saddle as to ride the saddle. The idea is that
> the ball is Riem geom and the saddleshape
> is Lobachevskian geom.

What is a lobachevskian geom?
http://en.wikipedia.org/wiki/Hyperbolic_geometry
Or a Reim geom?
http://images.google.com/images?q=Riemannian%20geometry

> And, please, if you have extra time could you draw a Cartesian three
> dimensional coordinate system of about
> the same size as the saddle and ball.

This may not have occured to you but some people may have no idea what
a Cartesian three dimensional coordinate system is. They are even less
likely to know when you have abreviated something like Riem. Whenever
one group with its own language is making a request of a group that
has its own language it is best to provide a referance source to any
terms that group one may know but group two my have no experiance
with. 

http://en.wikipedia.org/wiki/Cartesian_coordinate_system 
Now, which of systems listed there did you want illustrated?

How big did you want this thing?  This big?
              __
             (  )
              \/     _
             / \`---' \
            /_.-\_.--._\

That big^2
That big * 16

Size matters.


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