Add uniform_inside_sphere_distribution

[Ed Smith-Rowland]

On 11/05/2014 04:25 PM, Marc Glisse wrote:
> On Wed, 5 Nov 2014, Ed Smith-Rowland wrote:
>
>> Like the uniform_on_sphere_distribution which is used inside, the 
>> 2-dimensional case uses rejection
>
> Could you point out where in the code you are special-casing dimension 
> 2? Somehow I can't see it in the patch.
>
My miscommunication.  Sorry.

The special casing - and all the hard work - is done by the contained 
uniform_on_sphere_distribution.
The uniform_inside_sphere_distribution only has one template.

Ed