finding minimum of ugly and parameterised function
Subject: finding minimum of ugly and parameterised function
From: Evgeniy Maevskiy
Date: Thu, 21 Jun 2012 21:47:01 +0300
Hello, Ivana.
Let f(x;p,q) = (p-x)^2 + (q-1.4-(5.6/(1+exp(44*(x-1.28)))))^2
> However, derivative f'(x) is pretty ugly and Maxima does not seem to be able to solve f'(x)=0.
Maxima not able to solve f'(x;p,q)=0 in finite terms. But are you sure
that you want an exact (symbolic) solution of this equation?
Let m(p,q)=min_x f(x;p,q)
What properties of function m(p,q) you are interested?
Evgeniy