How can i solve this using MATLAB ?

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Bello Khadijah
Bello Khadijah 2015-6-17
回答： Star Strider 2015-6-17
2=0.04*F1+0.54*F2+0.26*F3;
6=0.93*F1+0.24*F2+0*F3;
2=0.03*F1+0.22*F2+0.74*F3;

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回答（2 个）

Mischa Kim
Mischa Kim 2015-6-17
Bello, if you have access to the Symbolic Math Toolbox:
syms F1 F2 F3
sol = solve([2==0.04*F1+0.54*F2+0.26*F3,...
6==0.93*F1+0.24*F2+0*F3,...
2==0.03*F1+0.22*F2+0.74*F3], [F1,F2,F3])
sol.F1
ans =
1520/261
Star Strider
Star Strider 2015-6-17
Or you can use mrdivide to solve it as a matrix equation in core MATLAB:
F = [0.04 0.54 0.26; 0.93 0.24 0; 0.03 0.22 0.74]\[2; 6; 2];
[F1,F2,F3] = deal(F(1), F(2), F(3))
produces:
F1 =
5.8238e+000
F2 =
2.4330e+000
F3 =
1.7433e+000

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