Quick Lamp Base Modeling Demo

ForfatterTim Brzezinski

In this screencast, notice how the base is a frustum of an elliptical cone. That is, for this surface, cross sections of planes parallel to the floor and this surface are ellipses.

Quick Silent Demo

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Viviani's Curve
Untitled
Trefoil Knot
Hyperbolic Paraboloid

Opdag Ressourcer

Prima prova
MG.12 Ptolemy's
Example 3 of Applet in which 3 moving points in three-dimensional space "induce" 8 geometric medians on a sphere.
Trophy (version 2)

Udforsk emner

Omskreven cirkel
Polygoner
Areal
Cosinus
Tangentlinje eller Tangent