code: function rlnorm(meanlog, sdlog) {
        var rnorm;
  
        rnorm = normal.rnorm(meanlog, sdlog);
  
        return function() {
           return Math.exp(rnorm());
        };
     }
docs: Returns a random variate from the lognormal distribution.
  
  Expects $\textrm{sdlog} > 0$.
  
  Uses a rejection polar method.
  @fullName rlnorm(meanlog, sdlog)()
  @memberof lognormal