đơn vị ảo

Also known as i, ι, unit imaginary number, j

một hằng số trong toán học, căn bậc hai của âm một

AI overview

The imaginary unit is a mathematical tool defined as the square root of negative one, which ordinarily has no solution in everyday numbers. It's used to create complex numbers, a broader number system that extends mathematics beyond what regular numbers alone can express.

AI-generated from the Wikipedia summary — may contain errors.

In the Vinony graph

Within Vinony's link graph, đơn vị ảo is referenced by 316 other articles, and connects out to Cartesian coordinate system, complex number and real number.

It sits within the topics Algebraic numbers, Complex numbers and Mathematical constants.

Its subject is documented across 65 Wikipedia language editions.