[OT] fastest fibbonacci

[Andrei Alexandrescu via Digitalmars-d]

On 10/23/16 12:32 PM, Timon Gehr wrote:
> It uses a general technique to speed up computation of linear recurrences

Would be awesome to factor this out of the particular algorithm. I 
recall SICP famously does that with a convergence accelerating technique 
for series. -- Andrei