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chen13838

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[交流] MATLAB中求解方程的问题

T_1是未知数,通过求解f1想要的出T_1,但是运行完了之后出现了点错误。
syms T_1;
P_2s=1500;
P_1=500;
h_1=refpropm('H','T',T_1,'P',P_1,'R245fa');
s_1=refpropm('S','T',T_1,'P',P_1,'R245fa');
s_2s=s_1;
h_2s=refpropm('H','P',P_2s,'S',s_2s,'R245fa');
T_2=365;
P_2=1500;
h_2=refpropm('H','T',T_2,'P',P_2,'R245fa');
f1=0.9*(h_2-h_1)-h_2s+h_1;
T_1=solve(f1)


错误使用 cell2mat (line 52)
CELL2MAT 不支持包含元胞数组或对象的元胞数组。

出错 refpropm (line 299)
propVal1 = cell2mat(varargin(3));

希望有告诉帮助一下。
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