This site is supported by donations to The OEIS Foundation.

Imaginary unit

From OeisWiki
Jump to: navigation, search

This article page is a stub, please help by expanding it.

The imaginary unit is one of the four units of the domain of complex numbers. (The others are 1, –1 and ). In electrical engineering applications, the symbol is generally used instead of , which is then generally used as an iterator.[1] The imaginary unit is I in Wolfram Mathematica's InputForm and a blackboard bold lowercase I in StandardForm.

The square root of the imaginary unit is (see A010503).

  1. Paul J. Nahin, An Imaginary Tale: The Story of . Princeton, New Jersey: Princeton University Press (1988): 125