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The principal branch of Lambert’s W function W(z) (DLMF 4.13), the solution of
The k-th branch of Lambert’s W function W(z) (DLMF 4.13), the solution of \(z=W(z)e^{W(z)}\) .
The principal branch, denoted
\(W_p(z)\)
in DLMF, is lambert_w(z) = generalized_lambert_w(0,z)
.
The other branch with real values, denoted
\(W_m(z)\)
in DLMF, is generalized_lambert_w(-1,z)
.
The Bateman k function
It is a special case of the confluent hypergeometric function. Maxima can
calculate the Laplace transform of kbateman
using laplace
or specint
, but has no other knowledge of this function.
The Plasma Dispersion Function
Returns realpart(nzeta(z))
.
Returns imagpart(nzeta(z))
.
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