$${\mathtt{mo}} = \left({\frac{{\mathtt{d1}}}{{\mathtt{d1}}}}{\mathtt{\,\small\textbf+\,}}{\mathtt{d2}}\right){\mathtt{\,\times\,}}{i}$$
I don't have any idea what you are asking and I think if anyone else did you would already have an answer.
Sorry.
