field -- the field of a code

• Usage:

  field (C)

• Inputs:
  • C, an instance of the type LinearCode,
• Outputs:
  • a ring,

i1 : F=GF(4,Variable=>a);

i2 : C=linearCode(matrix{{1,a,0},{0,1,a}});

i3 : field C

o3 = F

o3 : GaloisField