| Author |
Comment/Response |
john
|
 11/27/06 06:57am
It is unable to solve that I have an equation preface problem.
Preface the following of equation:
FindRoot[{F12*Cos[
Φ1] + F32*Cos[Φ2] == 0, F12*Sin[Φ1] + F32*Sin[Φ2] == 2.49, 45*F32*
Sin[Φ2] - 0.224*F12 + 0.17*F32 == -4864.45, -F32*Cos[Φ2 + π] - F34*
Cos[Φ3 + π] - F35*Cos[Φ4 + π] == -0.01, -F32*Sin[Φ2 + π] -
F34*Sin[Φ3 + π] - F35*Sin[Φ4 + π] == 1.94,
7.5*F34*Sin[Φ3 + π] + 22.44*F35*Cos[Φ4 +
π] + 36.01*F35*Sin[Φ4 + π] - 0.17*F32 - 0.855*F34 - 0.07*F35 == 15.66,
F34*Cos[Φ3] +
F14*Cos[Φ6] == 0, F34*Sin[Φ3] + F14*Sin[
Φ6] == 5.83, 30*F34*Sin[Φ3] - 0.224*F14 + 0.855*F34 == -4905, F15*Cos[
Φ5] + F35*Cos[
Φ4] == 0, F15*Sin[Φ5] + F35*Sin[Φ4] == 0, -0.12*F15 + 0.07*F35 ==
0}, {{F12, 9.7, 0, 20}, {F14,
10, 0, 20}, {F15, 5.5, 0, 10}, {F32, 3, 0, 5}, {F34, 10, 0, 15}, {
F35, 3, 0, 5}, {Φ1, 95, 0, 360}, {Φ2, 265, 0, 360}, {Φ3, 93, 0,
360}, {Φ4, 95, 0, 360}, {Φ5, 30, 0, 360}, {Φ6, 93, 0,
360}}, WorkingPrecision -> 13, MaxIterations -> 1000]
It always presents wrong information .
Please help me
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