Imaginary Numbers How To. Learn about the imaginary unit i about the imaginary numbers and about square roots of negative numbers. Imaginary numbers are not imaginary they really exist and have many uses.
Imaginary numbers are based on the mathematical number i. For example a bj is a complex number with a as the real part of the complex number and b as the imaginary part of the complex number. Complex numbers are sometimes represented using the cartesian plane.
An imaginary number can be added to a real number to form another complex number.
The square of an imaginary number say bj is bj 2 b2. An imaginary number can be added to a real number to form another complex number. The unit imaginary number i equals the square root of minus 1. For example a bj is a complex number with a as the real part of the complex number and b as the imaginary part of the complex number.