Denis Koroskin Wrote: > On Wed, 08 Apr 2009 21:54:02 +0400, Frank Torte <frankt123...@gmail.com> > wrote: > > > Paul D. Anderson Wrote: > > > >> Is there an active project to develop arbitrary-precision floating > >> point numbers for D? > >> > >> I've got a little extra time at the moment and would like to contribute > >> if I can. I've done some work in floating point arithmetic and would be > >> willing to start/complete/add to/test/design/etc. such a project. What > >> I hope NOT to do is to re-implement someone else's perfectly adequate > >> code. > >> > >> If no such project exists I'd like to start one. If there are a bunch > >> of half-finished attempts (I have one of those), let's pool our efforts. > >> > >> I know several contributors here have a strong interest and/or > >> background in numerics. I'd like to hear inputs regarding: > >> > >> a) the merits (or lack) of having an arbitrary-precision floating point > >> type > >> > >> b) the features and functions that should be included. > >> > >> Just to be clear -- I'm talking about a library addition here, not a > >> change in the language. > >> > >> Paul > >> > >> > > > > When you can use a number in D that is more than the number of atoms in > > the known universe why would you want a bigger number? > > I'd like to calculate pi with up to 20000 valid digits. Or a square root of 2 > with the same precision. How do I do that?
I've got some Java code that will do that -- not here with me at work. Of course, it uses Java's BigDecimal class -- that's what D doesn't seem to have. Paul
