betti -- display degrees

Ways to use betti :

• betti(ChainComplex) -- display of degrees in a chain complex
• betti(GroebnerBasis) -- diagram of the degrees of a groebner basis
• betti(Ideal) -- gives the degrees of generators.
• betti(MonomialIdeal), see betti(Ideal) -- gives the degrees of generators.
• betti(Matrix) -- display of the degrees of a map
• betti(CoherentSheaf), see betti(Module) -- gives the generators and relations of a module or a coherent sheaf.
• betti(Module) -- gives the generators and relations of a module or a coherent sheaf.