coxDegrees(ab,e)
This function computes integers a' and b' such that $H^0(O_{P(E)}(aH+bR))$ corresponds to basis($\{a',b'\}$,S), where S is the Cox ring of the scroll $P(E)$.
The object coxDegrees is a method function.
The source of this document is in RelativeCanonicalResolution.m2:855:0.