[Help-gsl] Bspline maximum and minimum

[Alex Lopes]

Hi,

I'm trying to use a Bspline to smooth some noisy data. I've done
it successfully based on the example available in the manual.

Now, I need to find the x value of the maximum and minimum of the fitted
function.

I know the math theory about the derivatives, but I have no idea about how
to implement it using the functions of gsl.

Could anyone point me some high level instructions ?

Thank you very much,
--
Alex Lopes Pereira