dual Matrix -- dual of a map

dual Matrix -- dual of a map

Synopsis:

Function: dual -- dual module or map

Input:

an instance of class Matrix.

Output:

an instance of class Matrix.

dual f -- the dual (transpose) of a homomorphism.

Code:

     -- ../../../Macaulay2/m2/matrix1.m2:649-652
     dual(Matrix) := Matrix => f -> (
          R := ring f;
          Hom(f,R^1)
          )