i1 : A = QQ{x,y,z}
o1 = A
o1 : NCPolynomialRing
|
i2 : M = ncMatrix {{x, y, z}}
o2 = | x y z |
o2 : NCMatrix
|
i3 : sigma = ncMap(A,A,{y,z,x})
o3 = NCRingMap A <--- A
o3 : NCRingMap
|
i4 : N = ncMatrix {{M},{sigma M}, {sigma sigma M}}
o4 = | x y z |
| y z x |
| z x y |
o4 : NCMatrix
|
i5 : -N
o5 = | -x -y -z |
| -y -z -x |
| -z -x -y |
o5 : NCMatrix
|