Pascal's triangle


Pas·​cal's triangle pa-ˈskalz- How to pronounce Pascal's triangle (audio)
: a system of numbers arranged in rows resembling a triangle with each row consisting of the coefficients in the expansion of (a + b)n for n = 0, 1, 2, 3,  …

Word History

First Known Use

1886, in the meaning defined above

Time Traveler
The first known use of Pascal's triangle was in 1886

Dictionary Entries Near Pascal's triangle

Cite this Entry

“Pascal's triangle.” Dictionary, Merriam-Webster, Accessed 29 Mar. 2023.

Kids Definition

Pascal's triangle

Pas·​cal's triangle pas-ˈkalz- How to pronounce Pascal's triangle (audio)
: a set of numbers which are arranged in rows in the shape of a triangle with the top row containing only 1, the next row 1 1, the following row 1 2 1, and in general the nth row containing the coefficients in the expansion of (a + b) as n equals 0, 1, 2, 3, etc.
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