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- Path: sparky!uunet!mcsun!sun4nl!cwi.nl!vanloon
- From: vanloon@cwi.nl (Maarten van Loon)
- Newsgroups: sci.math
- Subject: Ellipsoid Problem
- Message-ID: <7087@charon.cwi.nl>
- Date: 20 Aug 92 06:26:10 GMT
- Sender: news@cwi.nl
- Organization: CWI, Amsterdam
- Lines: 32
-
- I am posting this for a friend who has no access to the net.
- The problem is the following:
-
- We have two ellipsoids
-
- ellipsoid 1: SQR((x-Cx)/a) + SQR((y-Cy)/b) + SQR((z-Cz)/c) = 1
-
- ellipsoid 2: SQR((x-Nx)/d) + SQR((y-Ny)/e) + SQR((z-Nz)/f) = 1
-
- All values are supposed to be known, except for Nx, Ny, Nz.
- x, y and z are of course space variables. We also assume that
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- d < a
- e < b
- f < c
-
- The question here is: what values can Nx, Ny, Nz take so that
- ellipsoid 2 is contained in ellipsoid 1?
-
- Solutions or suggestions are welcome.
-
- Thanks in advance on behalf of my friend,
-
- Maarten
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- | Maarten van Loon | The easiest answers are the most |
- | CWI, P.O.Box 4079 | difficult to find |
- | 1009 AB Amsterdam | |
- | The Netherlands | ----------------------------------------|
- | email: vanloon@cwi.nl | Not knowing Bach = not really living |
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