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This is a head lamp for a vehicle, comprising an illipsoidal reflector, a horizontally oriented light source, and a lens. The reflector has forward and rear focal points and extends forwardly of the latter. The light source is at the rear focal point. The focus of the lens is at the forward focal point of the reflector. The reflector and light source and lens are proportioned to project an elliptical beam pattern having a relatively great horizontal spread. This pattern is symbolically represented by a spoke-like multiplicity of groups of overlapping images of the source.
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What is the half of an oval called in 3D?
A semi-ellipsoid.
What solid figure has no bases and one curved surface?
For example, a sphere or an ellipsoid.
What is the formula for the volume of an ellipsoid?
'If a, b, and c are the semi-axes, the volume is (4/3)πabc. When a b c the ellipsoid is a sphere and this formula becomes (4/3)πa3' (James and James, eds, Mathematics Dictionary D. Van Nostrand, 1960)
What is the name for a 3d shape like an egg?
It's an ovoid, not an ellipsoid as some may think.
What is another name for a 3d shaped oval?
Ellipsoid. (An oval is a 2-d shape, NOT 3-d).
