BL_post_distr | Computes the Black-Litterman posterior distribution. |

equilibrium_mean | Solves the inverse optimization to mean-risk standard optimization problem to find equilibrium returns. The function is invoked by BL_post_distr and arguments are supplemented by BL_post_distr. |

observ_normal | Example of distribution of views - normal distribution |

observ_powerexp | Example of distribution of views - power exponential distribution |

observ_ts | Example of distribution of views - Student t-distribution |