e592.m

matlab算法集 matlab算法集

%------------------------------------------------------------------------
% Example 5.9.2: Bacterial Chemostat 
%------------------------------------------------------------------------

% Initialize 

   clc                      % clear screen
   clear                    % clear variables
   m   = 50;                % maximum iterations 
   tol = 1.e-6;             % error tolerance 
   x0  = [1 0.1]';          % initial guess
       
   g = inline ('norm(funf592([a;b]),2)^2','a','b');   % error surface 

% Compute and display steady-state solution 

   fprintf ('Example 5.9.2: Bacterial Chemostat\n');
   [x,i] = newton (x0,tol,m,'funf592');
   show ('Number of iterations',i)
   show ('Steady-state solution',x)

% Plot error surface e(x) = ||f(x)|| */

   plotfun (0,3,-1,1.5,'Error Surface','x_1','x_2','g(x)',g)
%------------------------------------------------------------------------