grading -- The grading of a first order deformation or complex or polynomial ring.

Ways to use grading :

• grading(Complex) -- The grading of a complex.
• grading(FirstOrderDeformation) -- The small torus grading of a deformation.
• grading(PolynomialRing) -- The coker grading of a polynomial ring.

For the programmer

The object grading is a method function.