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`besselj(n, x)` returns `NaN` when `x` is negative and `n` is a large negative integer #113

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yakovbraver opened this issue May 1, 2024 · 0 comments

yakovbraver commented May 1, 2024

Consider calling besselj(n, x) where x is negative, while n is a large negative integer:

julia> Bessels.besselj(-172, -2.0)
NaN

julia> Bessels.besselj(-37, -2.0f0)
NaN32

When at least one argument is positive, there is no problem:

julia> Bessels.besselj(172, -2.0)
4.657823561745e-312

julia> Bessels.besselj(-37, 2.0f0)
-7.1f-44

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