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Spherical Design


X is a spherical t-design in E iff it is possible to exactly determine the average value on E of any polynomial f of degree at most t by sampling f at the points of X. In other words,

 1/(Vol(E))int_Ef(xi)dxi=1/(|X|)sum_(x in X)f(x).

Spherical t-designs give the placement of n points on a sphere for use in numerical integration with equal weights.


See also

Spherical Code, Spherical Covering

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References

Colbourn, C. J. and Dinitz, J. H. (Eds.). "Spherical t-Designs." Ch. 44 in CRC Handbook of Combinatorial Designs. Boca Raton, FL: CRC Press, pp. 462-466, 1996.Hardin, R. H. and Sloane, N. J. A. S. "McLaren's Improved Snub Cube and Other New Spherical Designs in Three Dimensions." Disc. Comput. Geom. 15, 429-331, 1996.Hardin, R. H.; Sloane, N. J. A. S.; and Smith, W. D. Spherical Codes. In preparation. http://www.research.att.com/~njas/sphdesigns/.McLaren, A. D. "Optimal Numerical Integration on a Sphere." Math. Comput. 17, 361-383, 1963.

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Spherical Design

Cite this as:

Weisstein, Eric W. "Spherical Design." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/SphericalDesign.html

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