if i have a complex variable z=x+iy, is there an inbuilt Mathematica function that extracts the real or imaginary parts of z. Something like Re[z] which would give Re[z]=x or Im[z]=y. Obviously this is a simple example that I wish to apply to a more complex situation.
I have a variable (which I would like to define as
1/qo but it is tag protected)
qoInv = (-1 + I*f/zi)/(f - d + f*d*I/zi)
I would like to extract the real and imaginary parts of qoInv so I can solve a simultaneous equation by equating
Re[qoInv]= 1/Ro and
Im[qoInv]=1/zo, how do I go about doing this?