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Pascal's triangle

noun, Mathematics
1.
a triangular arrangement of the binomial coefficients of the expansion (x + y) n for positive integral values of n.
Origin
named after Pascal
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for pascal triangle

Pascal's triangle

noun
1.
a triangle consisting of rows of numbers; the apex is 1 and each row starts and ends with 1, other numbers being obtained by adding together the two numbers on either side in the row above: used to calculate probabilities
Word Origin
C17: named after Blaise Pascal
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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