bessel[IJKY] functions

[Ilya Yaroshenko via Digitalmars-d-announce]

On Thursday, 25 December 2014 at 18:23:56 UTC, bearophile wrote:
> Ilya Yaroshenko:
>
>> Ported from r-project:
>> http://code.dlang.org/packages/bessel
>
> If you like to write the full path like "std.math.isNaN", then 
> you can also use static imports.
>
> Perhaps it's worth adding pre/post-conditions to the functions.
>
> The indentations probably have a mix of tabs and spaces and 
> seem messed up.
>
> Is gamma_cody better/worse than std.mathspecial.gamma?

gamma_cody is special variant for bessel functions.

> Bye,
> bearophile