[R] Beyond double-precision?

[Warren Young]

joaks1 wrote:
> I need to perform some calculations with some extremely small numbers

The R package Brobdingnag does this.  It uses logarithmic 
representation, as recommended by others in this thread, but wraps it 
all up for you in a custom numeric class so you can use them as any 
other numeric type.

http://cran.r-project.org/web/packages/Brobdingnag/vignettes/brobpaper.pdf