Annotations:

Symbols:

$W\left(z\right)$: Lambert $W$-function, $\mathrm{i}$: imaginary unit and $x$: real variable

Keywords:

Lambert $W$-function, graphs, other branches, principal branch

Permalink:

http://dlmf.nist.gov/4.13.F1.mag

Encodings:

Magnified png, pdf

Addition (effective with 1.1.7):

The notation of the two displayed solutions has been updated.

See also:

Annotations for §4.13 and Ch.4