Re: [Bug-gsl] Confluent Hypergeometric 1F1 request

[Patrick Alken]

On 10/02/2014 12:11 PM, Raymond Rogers wrote:
> I believe I have found some problems and perhaps a solution in the 1F1 code.
> Could somebody (s) evaluate the following in Maple and Mathematica and
> post the results?
> 1F1( -1, -2, -4)
>
> The online Mathematica answer is: -1.000000000000000000000
> Whereas GSL gives 0.0549469166662
>
> If anybody is willing to discuss the calculation details; I would be
> grateful.   I have reached a conclusion that should be double checked.
>
> Ray
My mathematica says -1.