Thanks Mr. Hall,
But i dont know if im wrong but when you showed a derivate, it should be dY/dt so i dont understand but parameters as gama and t shouldnt be in the derivate as you can see as others models.
I hope you could understand,
Hi!!! im amateur in mathemathicals growth models but im doing my graduated work in adjust five differents models in some growth parameters in onion,
So my doubt is basically in a derivate for gauss model, i cant derivate this...