Compute the p by p matrix \(\mathcal{V}\) whose columns describe
how infective bites arising from all the mosquitoes biting a single human on a
single day are dispersed to other patches, accounting for movement and mortality.
$$\mathcal{V} = fq\Omega^{-1} \cdot e^{-\Omega\tau} \cdot \mbox{diag}\left(\frac{fqM}{W}\right)$$
metric_calV(f, q, Omega, tau, M, W)the feeding rate
fraction of bloodmeals taken on humans
the mosquito demography matrix
duration of the extrinsic incubation period
size of mosquito population in each patch
ambient human population at each patch
a numeric matrix