-- -*- M2-comint -*- {* hash: -603714090 *}

i1 : M = coker matrix{{1,2,3}}

o1 = cokernel | 1 2 3 |

                              1
o1 : ZZ-module, quotient of ZZ

i2 : M^3

o2 = cokernel | 1 2 3 0 0 0 0 0 0 |
              | 0 0 0 1 2 3 0 0 0 |
              | 0 0 0 0 0 0 1 2 3 |

                              3
o2 : ZZ-module, quotient of ZZ

i3 : directSum(3:M)

o3 = cokernel | 1 2 3 0 0 0 0 0 0 |
              | 0 0 0 1 2 3 0 0 0 |
              | 0 0 0 0 0 0 1 2 3 |

                              3
o3 : ZZ-module, quotient of ZZ

i4 :