Error using fsolve Too many input arguments.

Question

oshawcole 2017-10-23

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/362830-error-using-fsolve-too-many-input-arguments

回答： Torsten 2017-10-24

this is my code .Please tell me what am I doing wrong

x0=[1;1;1];
xSol=fsolve(@(x) lor(x),x0)
function fval= lor(X)
conc= X(1);
temperature=X(2);
TA1=X(3);
Tss = 30 + 273.15;  
C2 = 0.1068;     
C3 = 17.55;      
Gmin = 4;        
Gmax = 20;
C1 = 62.5;             
Tin = 10 + 273.15;       
A = 3.18;              
Cpcoolant = 1.0;       
V = 16.2;             
k0 = 5.04*10^10;       
E = 9310;              
F0 = 0.5;              
C0 = 11.5;             
H = 22.6*1000;        
rho = 1108.1;          
Cp = 0.865;            
T0 = 26.8 + 273.15;    
G = C3;
Cprime = 100*(G-Gmin)/(Gmax-Gmin); 
if Cprime < 20
    Qc = 22;
elseif Cprime > 85.56
    Qc = .01;
else
    Qc = -0.00511*(Cprime-20)^2 + 22; 
end
U = C1*Qc^(1./3.); 
fval(3,1) = temperature - (temperature-Tin)/(1+U*A/(2*Qc*Cpcoolant*60*453.59))-TA1;
fval(1,1)= (-V*k0*exp(-E/temperature)*conc - F0*(conc-C0))/V;
fval(2,1) = (H*V*k0*exp(-E/temperature)*conc...
            - U*A*(temperature-TA1)/60 - rho*F0*Cp*(temperature-T0))/(rho*V*Cp);
end