Last Update: 2/4/2015
If your Origin C, integration by using NAG library, user-defined fitting function is not fast enough, you can call GSL library to perform integration fitting.
Please refer to this tutorial for how to define the Origin C fitting function.
Please refer to using external DLL for how to create an external DLL fitting function.
There is an opx package, FittingWithExternalDLL.opx, in the folder of <Origin Installation Directory>/Samples/Curve Fitting/.
Keywords:speed, integration, dll, GSL, fit