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  • Raymond Toy's avatar
    Revert changes to atanh · 6ed52aa0
    Raymond Toy authored
    Still need the special case for real args to get the right branch
    cuts.  Haven't yet figured out why the current code doesn't work when
    the arg is a pure real.  Soemthing to do with computing y, but not
    sure how to get that to work out without doing just explicitly
    checking for real args.  In that case, it's just much easier to change
    the arg to have the correct imaginary component to make it continuous
    with the desired quadrant.
    6ed52aa0