dual ChainComplex -- dual

dual ChainComplex -- dual

Synopsis:

Function: dual -- dual module or map

Input:

an instance of class ChainComplex.

Output:

an instance of class ChainComplex.

dual C -- the dual of a chain complex.

Code:

     -- ../../../Macaulay2/m2/chaincomplexes.m2:569-571
     dual ChainComplex := ChainComplex => (C) -> (
               R := ring C;
               Hom(C,R^1))