Free algebra elements

AUTHORS:

• David Kohel (2005-09)

TESTS:

sage: R.<x,y> = FreeAlgebra(QQ,2)
sage: x == loads(dumps(x))
True
sage: x*y
x*y
sage: (x*y)^0
1
sage: (x*y)^3
x*y*x*y*x*y

class sage.algebras.free_algebra_element.FreeAlgebraElement(A, x)

Bases: sage.structure.element.AlgebraElement

A free algebra element.