problem with optimisation through lsqcurvefit

Hello,

I wanna use lsqcurvefit for optimisation but I cannot isolate 'y' on one side of the equal sign due to the complexity of the equation? How can I optimise my parameters in this case?

Many thanks,

kourosh

Answer 1

[Torsten]

Use lsqnonlin instead of lsqcurvefit. It accepts your equation to be implicit in x and y.

Best wishes

Torsten.