Miscellaneous

The items on this page have a mathematical connection, but do not fit well into the other mathematical topic pages that I have created.

Stamps

Stamp Description
Mexico, 40 cent, 1940
Scott:
Finger counting
Egypt, 10m, 1961
Scott: 540 194
Education Day with Triangle
Finland, 0.40, 1969
Scott:
Lots of mathematical symbols
Rwanda, 30c, 1974
Scott: 603 A91
Knot based mathematics used by Incas
India, 2r, 1977,
Scott: 781 A488
Hexagon insrcibed in a cirle
Czechoslovakia, 2r, 1987,
Scott:
Surveying work and Computer graphics
Czechoslovakia, 2r, 1987,
Scott: 781 A488
Prague's astronmical Clock, computer graphics
Macao

Knights tour, stamp is partial of a 16x16 checkerboard
India, 2004
Scott: 2067 A1405
Triangulation of India
Liechtenstein, 85, 2004
Scott:
A Mersenne Prime number found on November 14, 2001
Macao, 2004

The five platonic solids
India, 5r, 2009
Scott: 2391 A1709
Indian Mathematical Society
Australia, $1, 2016

Celebration of Decimal currency
Germany, 70, 2016

Crystals, intersecting cubes
Spain, 1.45, 2020

Teaching numbers
Thai, 2015

Thai numbers