Binomial

Binomial expansion describes the expansion of the powers of algebraic binomail expression. The binomial coefficients form a triangular array of numbers known as Pascal's Triangle, though the triangle was known to many prior to Pascal. In 1665 Issac Newton generalized the formula to allow exponents other than nonnegative integers, hence the appearance of the formula on several stamps attributed to Newton.

Stamps

Stamp Description
India, 25p, 1975
Scott: 648 A296
The binomial expansion appears
in the background, in the sixth
and seventh lines.
San Marino, 40L, 1982
Scott: 1023 A242
Korea, , 1993
Scott: