In mathematics, Pascal's triangle is a triangular array of the binomial coefficients which play a crucial role in probability theory, combinatorics, and algebra. In much of the Western world, it is named after the French mathematician Blaise Pascal, although other mathematicians studied it centuries before him in Persia, India, China, Germany, and Italy.
Pascal's version of the triangle
Blaise Pascal was a French mathematician, physicist, inventor, philosopher, and Catholic writer.
Portrait of Pascal in 1691
An early Pascaline on display at the Musée des Arts et Métiers, Paris
Pascal studying the cycloid, by Augustin Pajou, 1785, Louvre
Puy de Dôme