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

40.0% Correct | 60.0% Incorrect
Last Solution submitted on Oct 31, 2025

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