请问用solve函数求方程出不来解,是不是得用fslove函数!。
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Tr_t=T_i*(Pr_t/P_i).^((r-1)/r);
%求解质量流量
m_t=-m_i/r./Pr_t.*(Pr_t/P_i).^(1/r).*dPr_t;
syms Mu_t;
f=Pu_t*((r/R)^0.5)*A*Mu_t./(Tr_t.^0.5)/(1+(r-1)*(Mu_t.^2)/2)^0.5-m_t;
Mu_t=solve(f,'Mu_t');
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