How to solve Symbolic Optimization

Hello, I am new to matlab I am trying a symbolic optimization but I keep on getting errors from the optimization toolbox. The problem I want to set up is after I have specified the variables as:

syms Y 
syms A
syms N 
syms Ao
syms Po 
syms Ph
syms P
syms Pf 
syms T 
syms Ch
syms C
syms e
syms f
syms a
C == Ph/P*Ch
Y == A*N 
M == (e*Ao*Po/Pf*T)^(1/(1-e))
Y == Ch + M 
T== Pf/P

is to maximize in T and N log (Ch/T^a) - (N^(1+f))/(1+f) subject to Y == A*N and Y == Ch + M which I rewrite as A*N == Ch + M.

Can someone help me? Thank you in advance!

Maria Ludovica

[Shashank Gupta]

Hi Maria,

Can you please provide the complete stack trace of error which you are getting while executing your script.