5.1.155 tensor

Syntax:

tensor ( matrix_expression , matrix_expression )
tensor ( module_expression , module_expression )
tensor ( smatrix_expression , smatrix_expression )

Type:

same as the first argument

Purpose:

computes the tensor product (Kronecker product) of A and B

Example:

ring r=32003,(x,y,z),(c,ds); matrix A[3][3]=1,2,3,4,5,6,7,8,9; matrix B[2][2]=x,y,0,z; print(A); ==> 1,2,3, ==> 4,5,6, ==> 7,8,9 print(B); ==> x,y, ==> 0,z print(tensor(A,B)); ==> x, y, 2x,2y,3x,3y, ==> 0, z, 0, 2z,0, 3z, ==> 4x,4y,5x,5y,6x,6y, ==> 0, 4z,0, 5z,0, 6z, ==> 7x,7y,8x,8y,9x,9y, ==> 0, 7z,0, 8z,0, 9z