How can I expand a complex number in Real + i*Imaginary parts using symbolic variables?

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Henrique Rachid
Henrique Rachid 2018-1-24
回答： Nicolas Schmit 2018-1-25
I'm trying to find an expression that contains both Real and Imaginary parts for further use in a nonlinear equation system. Please, could anyone check my script and tell me if there's another way to do it?
Thanks.
if true
syms X1 X2 R1 R2 Rm Xm real;
Zc = expand(R2+X2*1i);
Zb = expand((Zc*Rm)/(Zc+Rm));
Za = expand((Zb*Xm*1i)/(Zb+Xm*1i));
Zeq = expand((Za + R1 + X1*1i));
Req = vpa(real(Zeq),6)
Xeq = vpa(imag(Zeq),6)
end

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回答（1 个）

Nicolas Schmit
Nicolas Schmit 2018-1-25
Not sure if it is what you are trying to do, but you can extract the real and imaginary parts of an expression using the real() and imag() functions.

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