I have some code on my web page
http://www.astro.umd.edu/~jph/J_page.html
in particular, see
http://www.astro.umd.edu/~jph/splines.ijs
They should be OK for large numbers of points.
Patrick
On Fri, 23 Jan 2009, Alfonso Salazar wrote:
> Dear friends:
> Does anyone know where I find functions in J to solve splines ?
> Alfonso
>
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