def get_mat_product_viewer(W1, W2):
 prod = np.dot(W1, W2)
 pv = make_viewer(prod.T)
 return pv

def get_mat_product_viewer ( W1 , W2 ) : prod = np . dot ( W1 , W2 ) pv = make_viewer ( prod . T ) return pv
show the matrix product of 2 layers .