on Mon Aug 29 2011, alfC <
alfredo.correa-AT-gmail.com> wrote:
> On Monday, August 29, 2011 1:02:00 AM UTC-7, John Maddock wrote:
>
> evaluate a polynomial approximation to the function:
>
> To consider a trivial example, if T*T isn't a T, then one can't even
>
> result = A + B* T + C * T^2 + D * T^3...
>
> to give a concrete example, the root finding algorithm that started this
> thread uses a polynomial approximation to the function to greatly speed up
> finding the root (we can find the polynomial approximation and it's root
> algebraically once we have evaluated enough points in the function). It's
> this insight that makes the algorithm converge so rapidly compared to the
> alternatives, but requiring that T*T != T breaks the underlying assumptions
> not only in how it's implemented, but in how it actually works
> algorithmically.
>
> The easy answer is that A, B, C and D are different types then.
> the types of A, B, C and D can be deduced from the type of T and the type of the result R, which are know at that
> point.