degreeLength -- the length of the degree vector

• Usage:

  degreeLength A

• Inputs:
  • A, a ring or a monoid,
• Outputs:
  • an integer, the length of a multidegree vector used as a degree of elements of A.

i1 : degreeLength ZZ

o1 = 0

i2 : degreeLength(ZZ[])

o2 = 1

i3 : degreeLength(ZZ[x])

o3 = 1

i4 : degreeLength(ZZ[x, Degrees => {{1,2,3}}])

o4 = 3

i5 : degreeLength(ZZ[x,y,z, DegreeRank => 3])

o5 = 3

i6 : degreeLength(GF 9)

o6 = 0