Last data update: 2014.03.03
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R: Lambert's W function
Lambert's W function
Description
Lambert's W function as per the Gnu Scientific Library reference manual
section 7.23. These functions are declared in header file
gsl_sf_lambert.h
Usage
lambert_W0(x, give=FALSE, strict=TRUE)
lambert_Wm1(x, give=FALSE,strict=TRUE)
Arguments
x |
input: real values
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give |
Boolean with TRUE meaning to return a list of three
items: the value, an estimate of the error, and a status number
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strict |
Boolean, with TRUE meaning to return NaN
if status is an error
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Author(s)
Robin K. S. Hankin
References
http://www.gnu.org/software/gsl
Examples
a <- runif(6)
L <- lambert_W0(a)
print(L*exp(L) - a)
Results
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