I keep getting "not enough input arguments" when trying to fsolve

Question

Rodrigo Blas 2020-3-17

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/511398-i-keep-getting-not-enough-input-arguments-when-trying-to-fsolve

评论： Rodrigo Blas 2020-3-17

l=5*10^-2;
dab=1*10^-9;
wai=.18;
wastar=.02;
wa=.1;
rhob=1-wa;
rhoa=wa;
rhoai=wai;
rhostar=wastar;
thetastar=(rhoa/rhob-rhostar/rhob)/(rhoai/rhob-rhostar/rhob);
c1=1.2732;
psy1=1.5708;
x=0;
xstar=x/l;
to=0;
funfun=@mhlprob2;
z=fsolve(funfun,to);
function f=mhlprob2(t,c1,psy1,dab,l,xstar,thetastar)
f=c1*exp(-psy1^2*dab*t/l^2)*cos(-psy1*xstar)-thetastar;
end
>> mhlset5prob2
Not enough input arguments.
Error in mhlprob2 (line 2)
f=c1*exp(-psy1^2*dab*t/l^2)*cos(-psy1*xstar)-thetastar;
Error in fsolve (line 242)
            fuser = feval(funfcn{3},x,varargin{:});
Error in mhlset5prob2 (line 17)
z=fsolve(funfun,to);
Caused by:
    Failure in initial objective function evaluation.
    FSOLVE cannot continue.
 
>> z
Undefined function or variable 'z'.
 
>> 