Lognormal Distribution with mean μ_{L}= and standard deviation σ_{L}=  
$$
\cssId{equationlognormal}{\text{pdf }} f(x) =
{1 \over {x \ \cssId{sigmanormal_1}{\sigma_N} \sqrt{2\pi}}}
e^{ { {{ { ({ln \ x}  \cssId{meannormal_1}{\mu_N})^2 } } \over {2 \cssId{sigmanormal_2}{\sigma_N}^2} }} }
$$

Underlying Normal Distribution with mean μ_{N}= and standard deviation σ_{N}=  
$$
\cssId{equationnormal}{\text{pdf }} f(x) =
{1 \over {\cssId{sigmanormal_3}{\sigma_N} \sqrt{2\pi}}}
e^{ { {{ { (x  \cssId{meannormal_2}{\mu_N})^2 } } \over {2 \cssId{sigmanormal_4}{\sigma_N}^2} }} }
$$
