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Does anyone know of a nice calculator for calculating the real and complex parts of a complex polynomial. Say, for example, I want to write the polynomial $p(z)=z^3+2z^2+1$ as a function $f(x,y)=(f_1(x,y),f_2(x,y))$, but I do not want to calculate $f_1$ and $f_2$ by hand.

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  • $\begingroup$ You can just use the binomial theorem to separate real and imaginary parts. $\endgroup$
    – Git Gud
    Jul 6, 2013 at 17:30

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You can do this with Wolfram Alpha. Example.

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    $\begingroup$ Or write it this way. $\endgroup$
    – Daniel R
    Jul 6, 2013 at 17:37
  • $\begingroup$ Thanks, I have almost no experience with doing math on computers, so that was very helpful. $\endgroup$
    – Trevor J Richards
    Jul 6, 2013 at 17:49

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