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Re: Deformable platonic "solids"
Posted:
Feb 28, 2013 7:48 AM
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In article <511e7643-79fb-4418-9108-16b317c87dff@googlegroups.com>,
david petry <david_lawrence_petry@yahoo.com> wrote:
>Any line segment joining two points reduces the
>total number of degrees of freedom of the system of points and line
>segments by one.
Not in general. Consider a deformable solid with a square face.
Joining two opposite corners will make that square rigid. Joining
the other two will have no further effect, while adding a line
somewhere else in the solid may.
-- Richard
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