Re: [Bug-gsl] interpolation function

[Brian Gough]

At Fri, 27 Mar 2009 00:25:28 +0000,
Michael Ng wrote:
> 
> Dear gurus,
>     I am using the following function to get interpolation points in a 
> 3D surface. I am doing it for the sake of finding the intersection line 
> between two surfaces:
> 
>     gsl_spline_eval(spline, x, acc);
> 
>     Unfortunately, the abave line failed to work when the data 'x' is a 
> constant, since it is from a flat surface. I understand that x has to be 
> in ascending order, but I hope to find a quick fix when x is a constant...

As you say x must be increasing, so the only way is to remove any
equal points before doing the interpolation.

-- 
Brian Gough
(GSL Maintainer)

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