Curvature centre point surface

Model 242

Category:

A VII 40; E XX 2; K 2

Description

Curvature centre point surface of the triaxial ellipsoid. a) Gypsum; curved surfaces are disjoined; b) Gypsum; curved surfaces are unified. c,d) the same in plasticene.

Showcase of this model is Case number 10

References

Separataband M3 im Mathematischen Institut p. 441.