WOLFRAM SYSTEM MODELER
LambertWIterIterative form of Lambert's w function for solving f(x) = x exp(x) for x |
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Wolfram Language
In[1]:=
SystemModel["Modelica.Fluid.Dissipation.Utilities.Functions.General.LambertWIter"]
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Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
This function calculates an approximation of the inverse for
f(x) = y = x * exp( x )
within ∞ > y > -1/e. Please note, that for negative inputs two solutions exists. The function currently delivers the result x = -1 ... 0 for that particular range.
Syntax
(x, iter) = LambertWIter(y)
Inputs (1)
| y |
Type: Real Description: Input f(x) |
|---|
Outputs (2)
| x |
Type: Real Description: Output W(y) |
|---|---|
| iter |
Type: Integer |