# How to calculate Pascal’s triangle?

### How to calculate Pascal’s triangle?

The principle of Pascal’s triangle is a pyramid based construction/triangle : write the number 1 on the first line, then 1 and 1 on the second line. For the following lines, add the values ​​of two adjacent numbers directly above and write the result (missing ends are 1).

### What is Pascal’s arithmetic triangle?

Pascal’s Triangle. Pascal’s arithmetic triangle is the triangle whose line of index n (n = 0, 1, 2…) gives the binomial coefficients C np for p = 0, 1, 2…, n. These numbers appear in the expansion of (a + b) n and in many areas of mathematics such as combinatorial analysis.

### How to construct a triangle?

The construction of the triangle is governed by Pascal’s relation: for all integers n and k such that 0 < k < n. Pascal's triangle can be generalized to other dimensions.

### What is the three-dimensional version of Pascal’s triangle?

Pascal’s triangle easily generalizes to higher dimensions. The three-dimensional version is called Pascal’s pyramid. Pascal’s triangle generalizes for negative rows. First, write the triangle in the following form, named array A(m,n):

### What are the coefficients of a Pascal triangle?

of Pascal, that is to say 1, 2, 1. Thus when we carry out an expansion of the form the coefficients are those which are on the n + 1st line of the triangle of Pascal. Knowing the summation formula, several properties simply appear. Let a = b = 1, then we have . Let a = 1 and b = -1, then we have .