See also
Absolute Square, Complex Argument, Complex Conjugate, Complex Modulus, Complex Plane, Imaginary Number, Purely Imaginary Number, Real Part, Sign
Related Wolfram sites
http://functions.wolfram.com/ComplexComponents/Im/
Explore with Wolfram|Alpha
References
Abramowitz, M. and Stegun, I. A. (Eds.). Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover, p. 16, 1972.Krantz, S. G. Handbook of Complex Variables. Boston, MA: Birkhäuser, p. 2, 1999.
Referenced on Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Imaginary Part." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/ImaginaryPart.html