Having Fun with Lambert W(x) Function
classification
💻 cs.MS
cs.NAmath.NA
keywords
functionlambertactualapplicationapproximationsasymptoticaugerbranch-point
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This short note presents the Lambert W(x) function and its possible application in the framework of physics related to the Pierre Auger Observatory. The actual numerical implementation in C++ consists of Halley's and Fritsch's iteration with branch-point expansion, asymptotic series and rational fits as initial approximations.
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