YouTube’s algorithm also presented me with videos about equations that could be solved by noticing the symmetry in their form. Example 1 Here, we notice that if then and: The odd powers of will cancel out on the expansion of the term on the left, and the even powers will appear twice, to give: We […]
The Lambert W function
YouTube’s algorithm kept presenting me with videos of equations whose solutions could be expressed in terms of the Lambet function. The function, named after Johann Heinrich Lambert (1728 to 1777), is specified by: is multivalued, even when and are real. has a single value when . That is referred to as the principal branch and […]