search for: otimes_r

For an application, I have formulas defined in terms of a left Kronecker product of matrices, A,B, meaning A \otimes_L B = {A * B[i,j]} -- matrix on the left multiplies each element on the right. The standard kronecker() function is the right Kronecker product, A \otimes_R B = {A[i,j] * B} -- matrix on the right multiplies each element on the left. The example below shows the result of kronecker() and what I want, but kronecker() is now defined in generic S4 methods, and I can't see how to use more basic functions to get the result I want. Or, alternatively...