Discover a handy way to describe reorderings and solve our anagram
in the process.
What groups of transformations map a regular pentagon to itself?
Proofs that there are only seven frieze patterns involve complicated group theory. The symmetries of a cylinder provide an easier approach.
Can you work out what simple structures have been dressed up in these advanced mathematical representations?
An introduction to the sort of algebra studied at university, focussing on groups.
An environment for exploring the properties of small groups.
An article for students and teachers on symmetry and square dancing. What do the symmetries of the square have to do with a dos-e-dos or a swing? Find out more?
This article only skims the surface of Galois theory and should
probably be accessible to a 17 or 18 year old school student with a
strong interest in mathematics.
Explore the properties of some groups such as: The set of all real
numbers excluding -1 together with the operation x*y = xy + x + y.
Find the identity and the inverse of the element x.
The binary operation * for combining sets is defined as the union
of two sets minus their intersection. Prove the set of all subsets
of a set S together with the binary operation * forms a group.
An introduction to groups using transformations, following on from the October 2006 Stage 3 problems.