Revision history [back]

Several examples of graded algebras:

• sample code at http://trac.sagemath.org/sage_trac/ticket/9280 (not yet merged into Sage). This is an example of how to create a simple graded algebra. Look at this patch, for example.
• the Steenrod algebra: look in SAGE_ROOT/devel/sage/sage/algebras/steenrod/.