Mathematics On Stamps

Hungary
200th Anniversary of the Birth of János Bolyai
March 14, 2002
János Bolyai (1802 - 1860) was a Hungarian mathematician, one of the founders of non-Euclidean geometry - geometry on surface of positive curvature (elliptic) or negative curvature (hyperbolic).
The stamp design features his Appendix Explaining the Absolutely True Science of Space published in 1831 as an appendix to his father's book on geometry.

Pi symbol and portraits of engineers, designed by Martha Garcia G., printed by lithography, and issued by Colombia on October 20, 1994 to commemorate the centenary of the Colombian Society of Engineers, Scott No. 1107.

- nethryk

Belgium
International Year of Mathematics
February 19, 2000
The design includes mathematical formulas, wave function curve, and the notches on the Ishango bone.
The Ishango bone was discovered in the Belgian Congo in 1960 and is dated at ca. 20000 years old. The three columns of asymmetrically grouped notches on the bone have been interpreted as a a numeral system or a six-month lunar calendar.

Luxembourg
76th International Congress of Applied Mathematics and Mechanics
March 15, 2005
GAMM (Gesellschaft fur Angewandte Mathematik und Mechanik) 2005, mathematical functions and geometric shapes

Finland
International Mathematics Congress
August 15, 1978
The International Congress of Mathematicians (ICM) is the largest conference for the topic of mathematics. It meets once every four years, hosted by the International Mathematical Union (IMU).

Argentina
International Year of Mathematics
March 18, 2000
In 1992 the International Mathematical Union declared that the Year 2000 will be the World mathematical Year. The activities, supported by UNESCO, focus on the challenges of the 21st Century and the role of mathematics in world development.
The stamp design use the sign of infinity to symbolize mathematics and to convey the hope of great progress in the new millennium.

France
Famous People - d'Alembert
June 13, 1959
Jean-Baptiste le Rond d'Alembert (1717 - 1783) was a French mathematician, physicist, philosopher, and music theorist. His formula for obtaining solutions to the wave equation is sometimes referred to as d'Alembert's equation. He was a pioneer in the study of partial differential equations and their use in physics.
(engraver: Albert Decaris)

Seki Takakazu, a Japanese mathematician in the Edo perido. He is known to be the greatest mathematician of japanese traditional mathematics called "Wa-San"; based on yhis totally different theoretical basis, he has made numerous discoveries which are equivalent to classic theories of western mathematics.

https://en.m.wikipedia.org/wiki/Seki_Takakazu

Every time I think this thread has finally died someone posts a new stamp. Please keep them coming!

Macedonia
The 2500th Anniversary of the Pythagorean Theorem
February 6, 1998
The stamp commemorates the Greek philosopher and mathematician Pythagoras of Samos (ca. 570 B.C. - 495 B.C.) and the famous Pythagorean Theorem.

That Enrico Fermi cover is gorgeous!

France
Famous People
November 14, 1949
Georges de Buffon (1707 - 1788) was a French mathematician and naturalist, His Sur le jeu de franc-carreau introduced calculus to probability theory.
(engraver: Gabriel-Antoine Barlangue)

Thanks for the Buffon stamp. Writing code for Buffon's Needle was one of my first programs.

Hong Kong 2016 57th International Maths Olympiad - Ceva's Theorem