This calculator uses the Adem relations to express elements of the mod 2 Steenrod algebra in terms of the Serre-Cartan basis.

To evaluate (for example) Sq⁴Sq²⁰+Sq⁸Sq⁸Sq⁸, use input format: 4 20 + 8 8 8
Currently this is the only input format supported, i.e. input must be a single Steenrod square, a product of squares, or a sum of products of squares - no parenthesization allowed!
Output is in the same format.

© Alex Kruckman, 2010.

Compiled to Javascript from Racket using Moby.
Racket source code: adem.rkt