GradedModule ** GradedModule -- a binary operator, usually used for tensor product or Cartesian product

Synopsis

Usage:
C ** D
Operator: **
Inputs:
- C, a graded module
- D, a graded module
Outputs:
- a graded module, the tensor product of C with D

Description

i1 : C = gradedModule(ZZ^1,ZZ^6,ZZ^2)

           1
o1 = 0 : ZZ

           6
     1 : ZZ

           2
     2 : ZZ

o1 : GradedModule

i2 : C ** C

           1
o2 = 0 : ZZ  

           12
     1 : ZZ

           40
     2 : ZZ

           24
     3 : ZZ

           4
     4 : ZZ  

o2 : GradedModule

i3 : betti oo

            0  1  2  3 4
o3 = total: 1 12 40 24 4
        -4: .  .  .  . 4
        -3: .  .  . 24 .
        -2: .  . 40  . .
        -1: . 12  .  . .
         0: 1  .  .  . .

o3 : BettiTally