-- -*- M2-comint -*- {* hash: -741658062 *}

i1 : M = matrix{{1,2,3},{2,3,4},{3,4,6}}

o1 = | 1 2 3 |
     | 2 3 4 |
     | 3 4 6 |

              3        3
o1 : Matrix ZZ  <--- ZZ

i2 : M+1, M+2

o2 = (| 2 2 3 |, | 3 2 3 |)
      | 2 4 4 |  | 2 5 4 |
      | 3 4 7 |  | 3 4 8 |

o2 : Sequence

i3 :