No solution found using fsolve
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My fsolve function is
F=[e11*(x(1)-Vwt)+e12*(x(2)-p)*10^6-(qf-qs)*dt;...
e21*(x(1)-Vwt)+e22*(x(2)-p)*10^6-(Q+qf*hf-qs*hs)*dt;...
e32*(x(2)-p)+e33*(x(3)-ar)-(Q-ar*hc*qdc)*dt;...
e42*(x(2)-p)*10^6+e43*(x(3)-ar)+e44*(x(4)-Vsd)-(Ps*(Vsd0-Vsd)/Td)*dt-((hf-hw)/hc)*dt];
The error shown is
Norm of First-order Trust-region
Iteration Func-count f(x) step optimality radius
0 5 1.03051e+033 1.21e+032 1
1 10 8.02298e+032 1 1.07e+032 1
2 15 3.56576e+032 2.5 7.13e+031 2.5
3 20 2.32352e+019 4.99999 7.09e+023 6.25
4 25 1.41731e+019 12.5 3.28e+020 12.5
5 30 1.28804e+018 31.2499 2.06e+021 31.2
6 35 14064.4 13.4862 4.48e+017 78.1
7 40 5.22757 1.22008e-006 8.63e+015 78.1
8 41 5.22757 1.2766e-014 8.63e+015 78.1
No solution found.
fsolve stopped because the relative size of the current step is less than the default value of the step size tolerance squared, but the vector of function values is not near zero as measured by the default value of the function tolerance.
criteria details please help
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Accepted Answer
Alan Weiss
on 12 Mar 2014
I don't know what is going on with your function, but did you try the suggestions in the documentation?
Alan Weiss
MATLAB mathematical toolbox documentation
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