powerRanks -- Compute the ranks of powers of a matrix

Description

This is what you do:

i1 : ea = exteriorExtension(3, 6, QQ);

i2 : A = ea.ad(first ea.bases#1);

              55       55
o2 : Matrix QQ   <-- QQ

i3 : ea.powerRanks A

o3 = {20, 1, 0}

o3 : List

The list outputs the rank of each power. These are invariants of the element x in ad(x).

The object powerRanks is a symbol.

The source of this document is in /build/macaulay2-88fgJW/macaulay2-1.25.11+ds/M2/Macaulay2/packages/ExteriorExtensions.m2:591:0.