Dimensional homogeneity will now correctly yield a = −1 and b = 2, and orientational homogeneity requires that ⁠ 1 x / ( 1 y a 1 z c ) = 1 z c + 1 = 1 ⁠. In other words, that c must be an odd integer. In fact, the required function of theta will be sin(θ)cos(θ) which is a series consisting of odd powers of θ.