Problem 42848. Lambert's W

Matlab cody does not support lambertw. Try to create a lambert's w function yourself.

Lambert's W is the function that solves

x*exp(x) = A;

given the value of A.

Read more about Lambert's W here.

Though it is not particularly appropriate for this particular function, consider using Newton-Raphson's method. Since all test cases will converge if starting with 0.

The relative tolerance for the result of x*exp(x) compared to A is 1e-5.

Solve

Solution Stats

40.76% Correct | 59.24% Incorrect
Last Solution submitted on Dec 07, 2025

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers52

Suggested Problems

More from this Author9

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!