Hello everyone

I would like to know if I could specify a range for parameters when I perform a non-linear fit ?

For example, how to run something similar to

`curve_fit(model, x, y, p, ?)`

in such way that parameter p[1] must be between [1,2] and p[2] between [0,0.5]

or is there any package that compute non-linear fit and also does this for me ?

Thank you