This command creates an NCMatrix. As with the matrix command, the user may provide this matrix as a doubly nested list of NCRingElements, or as a doubly nested list of NCMatrices.
The ncMatrix(NCRing,List,List) constructor is used only when creating maps to and from the zero free module.
i1 : A = QQ{a,b,c,d} o1 = A o1 : NCPolynomialRing |
i2 : M = ncMatrix {{a,b,c,d}} o2 = | a b c d | o2 : NCMatrix |
i3 : N = ncMatrix {{M,2*M,3*M},{4*M,5*M,6*M}} o3 = | a b c d 2a 2b 2c 2d 3a 3b 3c 3d | | | | 4a 4b 4c 4d 5a 5b 5c 5d 6a 6b 6c 6d | o3 : NCMatrix |