An Etymological Dictionary of Astronomy and Astrophysics

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Pascal's triangle
  سه‌بر ِ پاسکال  
sebar-e Pascal
Fr.: triangle de Pascal  

An array of numbers in the shape of a triangle, having a 1 at the top and also at the ends of each row. Each number is obtained by summing the two adjacent numbers to it in the preceding row. Each row is a set of → binomial coefficients. In the expansion of (x + y)n, the coefficients of x and y are given by the n-th row of Pascal’s traingle.

See also: → pascal; → triangle.