Pascal's identity

(redirected from Pascal's rule)
Also found in: Wikipedia.

Pascal's identity

[pa¦skalz ī′den·ə·dē]
(mathematics)
The equation where, in general, C (n, r) is the number of distinct subsets of r elements in a set of n elements (the binomial coefficient).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
But since [s.sup.(k).sub.i,i] = 1 for all i, it follows immediately from Pascal's rule that