i am solving non linear equations using excel data . but i am getting the error is unable to convert struct to syms can anyone help me ??
syms N J
Qo=xlsread('suspended.xlsx','A:A')
R=xlsread('suspended.xlsx','B:B')
No=xlsread('suspended.xlsx','C:C')
X=xlsread('suspended.xlsx','D:D')
V=24345;
k=1.076;
Kn=0.27
kd=0.04
bs=0.15
Xf=0.49
Df=1.04
Dw=1.3
L=0.04
a=2.24
Y=0.39;
bt=kd+bs
Nstar=N/Kn;
Nmin=Kn/((Y*k/bt)-1);
Lstar=L*(sqrt(k*Xf/Kn*Df))*Df*Dw;
Nstar_min=(1/(Y*k*(bt-1)));
jstar=(J/sqrt(Kn*k*Xf*Df));
nX = size(X,1 );
solutions = cell(1, nX);
for S=1:nX
solutions{S}=solve(Qo(S)*(1+R(S))*(No(S)-N)-V*(a*J+((X(S)*k*N)/(Kn+N))),(sqrt((Lstar^1.76)+5.2*(Nstar-Nstar_min))-(Lstar^0.88))/2.6==jstar^0.88,N,J)
vpa(solutions{S})
end
celldisp(solutions)

 Akzeptierte Antwort

Walter Roberson
Walter Roberson am 25 Jan. 2021
Bearbeitet: Walter Roberson am 28 Jan. 2021

0 Stimmen

for S=1:nX
solutions{S}=solve(Qo(S)*(1+R(S))*(No(S)-N)-V*(a*J+((X(S)*k*N)/(Kn+N))),(sqrt((Lstar^1.76)+5.2*(Nstar-Nstar_min))-(Lstar^0.88))/2.6==jstar^0.88,N,J);
temp = struct2cell(solutions{S});
vpa(horzcat(temp{:}))
end
This will use one column for each variable, but in the general case you will have difficulty figuring out exactly what order the variables will appear in -- and this makes no aattempt to label them on output.

Weitere Antworten (0)

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by