def div_expr(lh_op, rh_op):
 return lo.LinOp(lo.DIV, lh_op.size, [lh_op], rh_op)

def div_expr ( lh_op , rh_op ) : return lo . LinOp ( lo . DIV , lh_op . size , [ lh_op ] , rh_op )
divide one linear operator by another .