>>And then I heard from an electrical engineer that the AC circuit resistance is calculated far easier if you take capacitance to be imaginary and inductivity to be the real component. The equations begin to look nice then.
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>>Also, the functions that describe the flow of air around an airplane's wings are quite simple - f(x)=(a*x+b)/(c*x+d) - if all the constants and variables are complex. http://en.wikipedia.org/wiki/Nikolai_Yegorovich_Zhukovsky doesn't say much, though.
>
>Actually inductance is negative imaginary, capasitance is positive imaginary and resistance is the real component. Or was it inductance which is positive imaginary and capasitance which is negative imaginary. It's been a lon time since I used this type of calculations.... :-)

I didn't - just talked with an engineer. Reminds me of:

An atom comes to lost'n'found:

- I've lost an electron.

- Are you sure?

- I'm positive.