-- -*- M2-comint -*- {* hash: 238062061 *}

i1 : M = matrix"1,2;3,4";

              2        2
o1 : Matrix ZZ  <--- ZZ

i2 : simpleDocFrob(3,M)

o2 = | 1 2 0 0 0 0 |
     | 3 4 0 0 0 0 |
     | 0 0 1 2 0 0 |
     | 0 0 3 4 0 0 |
     | 0 0 0 0 1 2 |
     | 0 0 0 0 3 4 |

              6        6
o2 : Matrix ZZ  <--- ZZ

i3 :