Hello, I need help to make a linear fit. I copied and pasted one example from Origin C Help but it doesn´t work. I have no idea why. It doesn´t matter which example from the fitting function I compile. Maybe seems to be the NAG functions? And the other question is : I have an very small double value(1.44898E-5) and like to output the value, but all I see is "0.0000" or "NANUM".
I'll try my best to write in English-please try to understand me