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Lambert W calculator

Evaluate supported values of the Lambert W function, the inverse of a variable multiplied by its exponential.

How to use this calculator

Replace 00 with your argument. The starter uses the principal branch.

Tap the math below to edit it and see the result. Once a result is ready, press Tab on a hardware keyboard to accept it. Outside a matrix, Return completes the line; the phone math keyboard has the same Return action.

Try it here

LambertW⁡(0)\operatorname{LambertW}\left(0\right)

Interactive tools require JavaScript. You can read the guide and example without it.

What to know

Lambert W has multiple branches; do not assume this starter selects or enumerates every complex branch.

Mathlean combines visual mathematical input with computation and canvas tools. Results depend on the expression and available engine support; check important answers independently.

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