A continuous distribution with the differential @[email protected] of the form: \[f_{\text{w}}(x)\ \text{d}x = \frac{1}{a\ \sqrt{\pi \ x}}\ \exp (- \frac{1}{a^{2}}\ \ln ^{2}\frac{x}{b})\ \text{d}x\] where \(x\) is a parameter characterizing the @[email protected], such as @[email protected] or @[email protected] and \(a\) and \(b\) are positive adjustable parameters.