lambert_w( [ n , ] z )
The Lambert W function of z in SageMath. Defined implicitly by
\[ z = W(z) e^{ W(z)} \]The optional argument n specifies the branch. Defaults to the principle branch n = 0 if omitted.
Plot on the real axis:
Series expansion about the origin:
Special values:
Related functions: exp
Function category: logarithmic functions sagemath-docs