Re: [boost] Re: RFC: Differential Arithmetic Library

From: boost (boost_at_[hidden])
Date: 2002-02-14 03:36:02

Salut,

On Thursday 14 February 2002 02:54, deane_yang wrote:

> Do you mean higher order Taylor series for 1 variable,
> but just first order in several variables? This makes

Yes, that's my plan. If you need higer orders for many variables 
then you should use one of the existings libraries.

> sense to me, although you might be able to implement
> second order Taylor series in several variables using
> a good symmetric matrix class.

I would postpone second order for many variables until
ublas or mtl3 or a mix of those are accepted into boost.

> computing higher order partial derivatives of f(g(x)),
> and then setting f = exp. This works fine for exp, sin, cos,
> log, since their higher order derivatives are easy to compute.
> Functions like tan and atan look pretty hard to me.

I agree.
Best wishes,
Peter