Matrix ** Ring -- tensor product

• Operator: **

• Usage:

  f ** R

  R ** f

• Inputs:
  • f, a matrix,
  • R, a ring,
• Outputs:
  • a matrix, over $R$, obtained by forming the tensor product of the map $f$ with $R$

i1 : R = ZZ[a..c];

i2 : S = R/(a+b+c);

i3 : f = vars R

o3 = | a b c |

             1      3
o3 : Matrix R  <-- R

i4 : f ** S

o4 = | -b-c b c |

             1      3
o4 : Matrix S  <-- S