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I will be very thankful to you.</p> <p>Best Regards</p> <p>------------------------------<br /> '<br /> clear,clc<br /> global XX<br /> tend = 40;<br /> tspan=1:1:40;</p> <p> cp1 = 5; cp2 = 3; A1 = 2; rst = 2; </p> <p> UP1=.2; %%% parameter to be optimized range = [.01 1] %%%<br /> UP2=.7; %%% parameter to be optimized range = [0.5 3] %%%</p> <p> M =[cp1 0 0 0; 0 cp1 0 0; 0 0 cp2 0; 0 0 0 cp2];</p> <p> XX=[-rst-cp1*UP1 0 rst 0;<br /> UP1*cp1 0 0 0;<br /> rst 0 -rst-UP2*cp2 0;<br /> 0 0 UP2*cp2 0];</p> <p> options = odeset('AbsTol',1e-10,'RelTol',1e-10,'InitialStep',1e-2, ...<br /> 'Mass',M,'Jacobian',XX);</p> <p> u0 = zeros(4,1);<br /> u0(1) = 1;<br /> [t,u] = ode15s(@call, tspan, u0,options);</p> <p> n1=[u(3,2) u(7,2) u(end,2)];<br /> n2=[u(3,4) u(7,4) u(end,4)];</p> <p> e1=[0.3 0.8 1];<br /> e2=[0.5 2 5];</p> <p>*%%%% Objective is to minimize the following error %%%%*</p> <p> error = abs((n1(1)-e1(1))^2+(n1(3)-e1(2))^2+(n1(3)-e1(3))^2+...<br /> (n2(1)-e2(1))^2+(n2(2)-e2(2))^2+(n2(3)-e2(3))^2)<br /> '</p> <p>------------------------------</p> <p>'<br /> function du = call( t,u )<br /> global XX<br /> du=XX*u;<br /> end<br /> '<br /> ------------------------------ </p> http://www.mathroot.com/topic.php?id=27#post-39 Sat, 09 Apr 2011 15:11:28 +0000 msrohit10 39@http://www.mathroot.com/ <p>Hello..</p> <p>I am new to Matlab and now am working on image processing ...</p> <p>My quetion is ...how to represent the data shown in histogram numerically...???</p> <p>Please do reply for this topic...</p> <p>Thank you,<br /> Rohit M S </p> http://www.mathroot.com/topic.php?id=26#post-38 Mon, 28 Mar 2011 16:01:12 +0000 rohoho 38@http://www.mathroot.com/ <p>Hey,</p> <p>I am testing a program I have written (very new to Matlab, by the way), and it keeps saying my variables are undefined. 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