I am trying to decompose a function within an optimization problem. I see that Maple and similar software products can do it for a single variable function but not for multi-variate ones. Now, I am struggling with decomposing the following function with only two variables $x$ and $y$:
$$f\left(x,y\right)=\frac{r_c\tau_c\lambda_cx^2 + r_n\tau_n\lambda_n y^2 + \left(r_n\tau_n\lambda_c + r_c\tau_c\lambda_n\right)xy}{r_c x + r_n x + c}$$
Thank you very much for the help!