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- Organization: Doctoral student, Mathematics, Carnegie Mellon, Pittsburgh, PA
- Path: sparky!uunet!sun-barr!ames!haven.umd.edu!darwin.sura.net!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!news.sei.cmu.edu!fs7.ece.cmu.edu!crabapple.srv.cs.cmu.edu!andrew.cmu.edu!vm0h+
- Newsgroups: sci.math
- Message-ID: <kehTjHi00VpG8vREU7@andrew.cmu.edu>
- Date: Tue, 15 Sep 1992 11:05:55 -0400
- From: "Vincent J. Matsko" <vm0h+@andrew.cmu.edu>
- Subject: Hyperspherical triangles...
- Lines: 17
-
- I am interested in being able to calculate the areas of spherical
- triangles, where the sphere may have arbitrary dimension. I am
- acquainted with the formula in 3 dimensions, and the proof of this
- formula can easily be extended to ODD dimensions. But, I am afraid, I
- am stuck when it comes to even dimensions.
-
- Anyone have any insights/references?
-
- For all those linear algebraists/probabilists, here is an equivalent
- formulation:
-
- Given n linearly independent vectors (v_1, v_2, ... v_n) in R^n, and
- given the standard inner product on R^n: Given a vector u in R^n, what
- is the probability that the inner product of u with v_i is positive for
- all 1 <= i =< n?
-
- Vince Matsko
-