# Logninv

Logninv-func

## Definition:

computes the deviate,, associated with the given lower tail probability, , of the Lognormal distribution with parameters *mu* and *sigma*.

is calculated for the give such that:

where

## Parameters:

- p (input, double)
- The probability,, from the Lognormal distribution.
- mu (input, double)
- The mean of the associated Lognormal distribution .
- sigma (input, double)
- The standard deviation of the associated Lognormal distribution,
- xp (output, double)
- The deviate,.