Demonstration: Algebraic constructions and categoriesΒΆ

sage: Px.<x> = QQ[]
sage: Fx = Px.fraction_field()
sage: for category in Fx.categories(): print category
sage: g = sage.categories.category.category_graph()
sage: g.set_latex_options(format = "dot2tex")
sage: view(g, tightpage = True, viewer = "pdf")