Solve Nonlinear complex equation

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Reza Lashani
Reza Lashani 2021-6-9
评论： Reza Lashani 2021-6-9
Hello everybody How can I solve th equation below for X1 and X2 in MATLAB?
For more information, one of Ci's should be found by calcualtion and input in this equation other Ci's are known. Thank You for your help
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Reza Lashani
Reza Lashani 2021-6-9
No it has not three unknowns. It just has two unknowns all Ci's are pre-defined or pre-calculated.
Reza Lashani
Reza Lashani 2021-6-9
This equation is a physical equation based on a mechanism. Obtained by vector loop method. It should have a meaningful answer.

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回答（1 个）

David Hill
David Hill 2021-6-9
syms c1 c2 c3 c4 c5 c6 x1 x2;
eqn=c1*exp(1i*x1)+c2*exp(1i*c3)-c4*exp(1i*c5)+x2*exp(1i*c6)==0;
a=solve(eqn,x1);
b=solve(eqn,x2);
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John D'Errico
John D'Errico 2021-6-9
Which does nothing, because it just solves for one of the unknowns as a function of the other.
Reza Lashani
Reza Lashani 2021-6-9
Thanks David. But as John says it doesn't find the values of Xi's, just find the relation of X1 as a function of X2 and vice versa

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