Hello, I just subscribed to this mailing list.

I have a question that I originally sent to David Abrahams, and I'm hoping someone can help.

Dear Sir or Madam,

I am currently using boost in a simulator and have a few questions regarding the special functions that are (are not) available.

1. Do your special functions accept complex numbers as input and provide complex output?

I am specifically interested in the Bessel functions.

In most applications the argument is restricted to be positive and the index to be real.

However, Bessel functions are defined for complex index and argument, the former arises in acoustic and optical wave guide problems.

If the answer to 1 is no I’d suggest these capabilities as a future nice to have.

2. Does Boost plan to have hypergeometric functions in the future?

They are currently listed as unsupported TR1 functions. I have not been able to find them in TR1 either but I’m not done looking.

Thanks in advance for your help.

David