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Macaulay2Doc :: gradedModule

gradedModule -- make a graded module

Synopsis

Usage:

gradedModule v
Inputs:
- v, a list, a module, or a list or sequence of modules
Outputs:
- the graded module with the i-th element of v installed as its i-th component

Description

i1 : gradedModule ZZ^2

           2
o1 = 0 : ZZ

o1 : GradedModule

i2 : gradedModule(ZZ^2,ZZ^3,ZZ^400)

           2
o2 = 0 : ZZ   

           3
     1 : ZZ   

           400
     2 : ZZ

o2 : GradedModule

If v is a chain complex then the return value is the graded module underlying it.

i3 : R = QQ[x,y]

o3 = R

o3 : PolynomialRing

i4 : C = res coker vars R

      1      2      1
o4 = R  <-- R  <-- R  <-- 0
                           
     0      1      2      3

o4 : ChainComplex

i5 : gradedModule C

          1
o5 = 0 : R

          2
     1 : R

          1
     2 : R

     3 : 0 

o5 : GradedModule

Ways to use `gradedModule` :

"gradedModule(ChainComplex)"
"gradedModule(List)"
"gradedModule(Module)"
"gradedModule(Sequence)"

For the programmer

The object gradedModule is a method function with a single argument.