Done!
compiling...
_nlfcurve.fit
D:\Program Files\OriginLab\Origin8\Lynn\OriginC\NLSF\_nlfcurve.fit(37) :Error, invalid term
D:\Program Files\OriginLab\Origin8\Lynn\OriginC\NLSF\_nlfcurve.fit(37) :Error, general compile error
D:\Program Files\OriginLab\Origin8\Lynn\OriginC\NLSF\_nlfcurve.fit(28) :Error, error(s) found in compiling function _nlsfcurve
Compile Failed!