# rdevdict::lognormal

Name:
rdevdict::lognormal - lognormal random deviate generator
Description:
Generates lognormally distributed random numbers.       p(x) = 1 / (x * sigma * \sqrt{2 pi}) * exp (-(ln(x)-mu)^2 / 2 sigma^2)

Parameters:
   mu 	- mean of the underlying normal distribution (default: 0.0)    sigma	- standard deviation of the underlying normal distribution (default: 1.0)

Remarks:
   Mean and variance of the lognormal numbers are given by       E[X] = exp(mu + sigma^2/2)    Var[X] = (exp(sigma^2)	- 1) * E[X]^2

Author:
Hans Ekkehard Plesser

SeeAlso: Source:
/home/graber/work-nest/nest-git/nest-simulator/librandom/lognormal_randomdev.h