cokernel Matrix -- cokernel of a map

cokernel Matrix -- cokernel of a map

Synopsis:

Function: cokernel -- cokernel of a map

Input:

an instance of class Matrix.

Output:

an instance of class Module.

Code:

     -- ../../../Macaulay2/m2/matrix1.m2:472-474
     cokernel Matrix := Module => m -> (
          if m.cache.?cokernel then m.cache.cokernel else m.cache.cokernel = subquotient(,m)
          )