`atan2` vs `atan_2` - documentaion error

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There's a bit of a mismatch in the documentation vs code for naming of the atan2 function. In the documentation the function is listed as atan2 but it is defined in the code as atan_2. I guess the documentation needs fixing?

I think this has been the case for several releases (2021, 2019, 2017 at least).