lambertW0: Lambert W0 function

In SimInf: A Framework for Data-Driven Stochastic Disease Spread Simulations

Lambert W0 function

Description

W0(x) is the principal branch of the solution of the function defined by We^W = x for x >= -1/e. The value is calculated using GNU Scientific Library (GSL).

Usage

lambertW0(x)

Arguments

x	numeric vector of values.

References

GNU Scientific Library <https://www.gnu.org/software/gsl/>

Examples

## Should equal 1, as 1 * exp(1) = e.
lambertW0(exp(1))

## Should equal 0, as 0 * exp(0) = 0.
lambertW0(0)

## Should equal -1.
lambertW0(-exp(-1))

SimInf documentation built on Nov. 14, 2025, 1:08 a.m.