expose monomials and make_commutative as part of public API
These two functions are very useful in context of many continuum-related projects, e.g. Lowdin. Making them part of public API will assure that other projects can rely on them.
These two functions are very useful in context of many continuum-related projects, e.g. Lowdin. Making them part of public API will assure that other projects can rely on them.