Online calculator that can form an equation of a curve

[Ledsnyder]

Does anyone know of an online calculator that can form an equation of a curve with complex values and lots parameters?


An advanced curve fitting calculator

Y= C1(1/(1+C2e^C3x) for example

 

[symbolipoint]

This might not be the quality that you want, but try an internet search for "meta-calculator". Once there was downloadable a program called CurveExpert but it may be no longer available. That one was capable of curve fitting.