
#include nagmk26.h

$$\begin{array}{ll}f\left(x\right)=\frac{\left(\frac{\mu +\nu 2}{2}\right)!{x}^{\frac{1}{2}\mu 1}}{\left(\frac{1}{2}\mu 1\right)!\left(\frac{1}{2}\nu 1\right)!{\left(1+\frac{\mu}{\nu}x\right)}^{\frac{1}{2}\left(\mu +\nu \right)}}\times {\left(\frac{\mu}{\nu}\right)}^{\frac{1}{2}\mu}& \text{if}x>0\text{,}\\ & \\ f\left(x\right)=0& \text{otherwise.}\end{array}$$ 
$$\frac{\nu {y}_{i}}{\mu {z}_{i}}\text{, \hspace{1em}}i=1,2,\dots ,n\text{,}$$ 