Spline interpolation with one endslope constrained, the other endslope free?

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Pengfei
Pengfei 2012-8-16
Hi, I'm using cubic spline interpolation in matlab, and find that either it free the slopes of two end points, or constrain the two endslopes to certain values, like:
yy = spline(x,[0 y 0], xx);
I'm wondering how to constrain the slope of just one end point, with the other free.
Any suggestions?
Thanks!

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