# Pascal's triangle

- a triangular arrangement of the binomial coefficients of the expansion (x + y)n for positive integral values of n.

Show More

## Origin of Pascal's triangle

named after Pascal

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## Pascal's triangle

- 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

Show More

## Word Origin for Pascal's triangle

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