Re: Generalised bisection

[Ealdwulf Wuffinga <ealdwulf@googlemail.com>]

[John will get this twice, sorry; not used to this mail interface yet.]

On Wed, Mar 11, 2009 at 9:35 AM, John Tapsell <johnflux@gmail.com> wrote:

> mpmath might be the more annoying dependency - what functions do you
> use from it?  Could they trivially be reimplemented?

What I use is the multiprecision floating point number class. doubles
don't seem to be long enough.
The reason for using mpmath rather than the more  widespread GMP (and
its python wrapper gmpy) is that the latter only supports
integer powers, whereas BBChop needs fractional powers.

So, it might be possible to switch to gmpy,  or some other widespread
library,  by implementing a pow() which supports fractional powers.
I think I only use the normal arithmetic operators, log, and pow, so
in principle those could be reimplemented, to eliminate the dependency
altogether.
It seems a little bit of a waste of time, though.

Ealdwulf