توزیع ویشارت وارون

${\displaystyle {\frac {\left|{\mathbf {\Psi } }\right|^{\frac {\nu }{2}}}{2^{\frac {\nu p}{2}}\Gamma _{p}({\frac {\nu }{2}})}}\left|\mathbf {X} \right|^{-{\frac {\nu +p+1}{2}}}e^{-{\frac {1}{2}}\operatorname {tr} ({\mathbf {\Psi } }\mathbf {X} ^{-1})}}$

• ${\displaystyle \Gamma _{p}}$ is the multivariate gamma function
• ${\displaystyle \mathrm {tr} }$ is the اثر (ماتریس) function