% For each element of @var{x}, compute the probability density function
SYNOPSIS
function pdf = exponential_pdf (varargin)
DESCRIPTION
% -*- texinfo -*-
% @deftypefn {Function File} {} exponential_pdf (@var{x}, @var{lambda})
% For each element of @var{x}, compute the probability density function
% (PDF) of the exponential distribution with parameter @var{lambda}.
% @end deftypefn
