MATLAB: How to solve this? :-/

fsolve

Not enough input arguments.
Error in fsolve (line 243) fuser = feval(funfcn{3},x,varargin{:});
Caused by: Failure in initial user-supplied objective function evaluation. FSOLVE cannot continue. I write in cw: [y,fval,exitflag]=fsolve(@(ca,cc,cp)koncas(ca,cc,cp),[1;1;1;1;1;0;0;0;0;0;0;0]) function: function [ y] = koncas( ca,cc,cp) %UNTITLED Summary of this function goes here % Detailed explanation goes here
y=[2.2-0.53*ca(1)-24*ca(1)^2-ca(1)-8.5*ca(1)*cc(1)^2+0.7*cp(1)^3 0.364-0.44*ca(1)-1.44*ca(2)-24*ca(2)^2-ca(2)-8.5*ca(2)*cc(2)^2+0.7*cp(2)^3 0.3+1.1*ca(2)-1.85*ca(3)-24*ca(3)^2-ca(3)-8.5*ca(3)*cc(3)^2+0.7*cp(3)^3 0.25+1.54*ca(3)-2.15*ca(4)-24*ca(4)^2-ca(4)-8.5*ca(4)*cc(4)^2+0.7*cp(4)^3 36*ca(1)^2-17*ca(1)*cc(1)^2+2.1*cp(1)^3-0.533*cc(1) 0.44*cc(1)+36*ca(2)^2-17*ca(2)*cc(2)^2+2.1*cp(2)^3-1.33*cc(2) 1.11*cc(2)+36*ca(3)^2-17*ca(3)*cc(3)^2+2.1*cp(3)^3-1.85*cc(3) 1.54*cc(3)+36*ca(4)^2-17*ca(4)*cc(4)^2+2.1*cp(4)^3-1.33*cc(4) 8.5*ca*(1)*cc(1)^2-0.7*cp*(1)^3-0.53*cp(1) 0.44*cp(1)+8.5*ca*(2)*cc(2)^2-0.7*cp*(2)^3-1.6*cp(2) 1.11*cp(2)+8.5*ca*(3)*cc(3)^2-0.7*cp*(3)^3-1.85*cp(3) 1.54*cp*(3)+8.5*ca*(4)*cc(4)^2-0.7*cp*(4)^3-2.15*cp(4)];
end

Best Answer

>> out = @(c)[2.2-0.53*c(1)-24*c(1)^2-c(1)-8.5*c(1)*c(5)^2+0.7*c(9)^3
0.364-0.44*c(1)-1.44*c(2)-24*c(2)^2-c(2)-8.5*c(2)*c(6)^2+0.7*c(10)^3
0.3+1.1*c(2)-1.85*c(3)-24*c(3)^2-c(3)-8.5*c(3)*c(7)^2+0.7*c(11)^3
0.25+1.54*c(3)-2.15*c(4)-24*c(4)^2-c(4)-8.5*c(4)*c(8)^2+0.7*c(12)^3
36*c(1)^2-17*c(1)*c(5)^2+2.1*c(9)^3-0.533*c(5)
0.44*c(5)+36*c(2)^2-17*c(2)*c(6)^2+2.1*c(10)^3-1.33*c(6)
1.11*c(6)+36*c(3)^2-17*c(3)*c(7)^2+2.1*c(11)^3-1.85*c(7)
1.54*c(7)+36*c(4)^2-17*c(4)*c(8)^2+2.1*c(12)^3-1.33*c(8)
8.5*c(1)*c(5)^2-0.7*c(9)^3-0.53*c(9)
0.44*c(9)+8.5*c(2)*c(6)^2-0.7*c(10)^3-1.6*c(10)
1.11*c(10)+8.5*c(3)*c(7)^2-0.7*c(11)^3-1.85*c(11)
1.54*c(11)+8.5*c(4)*c(8)^2-0.7*c(12)^3-2.15*c(12)];
>> [y,fval,exitflag]=fsolve(out,[1;1;1;1;1;0;0;0;0;0;0;0])
Solver stopped prematurely.
fsolve stopped because it exceeded the function evaluation limit,
options.MaxFunEvals = 1200 (the default value).
y =
      0.20065
     0.058511
      0.07038
     0.063761
      0.97025
      0.35516
      0.26666
      0.33071
       1.0389
      0.30338
      0.19623
      0.16406
fval =
       0.1061
    0.0075983
    0.0076484
     0.003788
     0.075537
     0.010968
     0.010028
    0.0078918
      0.27012
     0.014878
     0.010971
    0.0056434
exitflag =
     0
>>
Related Question