Pascal's triangle

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Pascal's triangle

n.
A triangle of numbers in which a row represents the coefficients of the binomial series. The triangle is bordered by ones on the right and left sides, and each interior entry is the sum of the two entries above.

[After Blaise Pascal.]

Pascal's triangle

n
(Mathematics) 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
[C17: named after Blaise Pascal]
References in periodicals archive ?
Finally, let me just mention that what would be called the "Gaussian curve" was actually another way of applying the famous Pascal triangle.
The columns are the Pascal triangle numbers, while adding the diagonals from left to right produces the Fibonacci numbers.
The sequences that are generated correspond to a Pascal triangle, as shown in Figure 5, but with the overall sum of each row weighted to be zero, with the exception of the first, which is required to correct the overall division ratio of the divider in order to obtain the required fractional frequency.