-- -*- M2-comint -*- {* hash: 461580109 *}

i1 : R=QQ[x_0..x_4];

i2 : addCokerGrading(R);

              5        4
o2 : Matrix ZZ  <--- ZZ

i3 : grading R

o3 = | -1 -1 -1 -1 |
     | 1  0  0  0  |
     | 0  1  0  0  |
     | 0  0  1  0  |
     | 0  0  0  1  |

              5        4
o3 : Matrix ZZ  <--- ZZ

i4 :