Hi, I did a test of CSPLINE interpolation from the GSL package and compared the test (interp.c) file given in the doc/examples/ directory of the native GSL package to the XMGRACE interpolation function and found that they differ significantly. here i attach a pdf file which shows this difference.
I hope that there is an explanation for this , if so please help me understand this difference. The case in which this turns out to be a problem in the code I would like to help to correct this. thanks a lot, Vijay
grace_spline.pdf
Description: Adobe PDF document
