% -*- texinfo -*-
% @deftypefn {Function File} {} logninv (@var{x}, @var{mu}, @var{sigma})
% For each element of @var{x}, compute the quantile (the inverse of the
% CDF) at @var{x} of the lognormal distribution with parameters @var{mu}
% and @var{sigma}. If a random variable follows this distribution, its
% logarithm is normally distributed with mean @code{log (@var{mu})} and
% variance @var{sigma}.
%
% Default values are @var{mu} = 1, @var{sigma} = 1.
% @end deftypefn