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# coxDegrees -- Computes the degree of a polynomial in the Cox ring corresponding to a section of a bundle on the scroll

- Usage:
    `coxDegrees(ab,e)`
- Inputs:
  - ab, a list, containing the twist $a$ of the hyperplane class and $b$ of the ruling
  - e, a list, the type of the scroll
- Outputs:
  - ab', a list, containing the bidegree in the Cox ring

## Description

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 $P(E)$.

## See also

- scrollDegrees -- Computes the degree of a section of a bundle on the scroll ring corresponding to a polynomial in the Cox ring

## Ways to use coxDegrees:

- `coxDegrees(List,List)`

## For the programmer

The object coxDegrees is a method function.

The source of this document is in /build/macaulay2-88fgJW/macaulay2-1.25.11+ds/M2/Macaulay2/packages/RelativeCanonicalResolution.m2:855:0.