0 a number that is the square root of a negative number --
1 a number that is the square root (= number you multiply by itself to get a particular number) of a negative number (= number less than zero), especially the square root of -1 --
Under these conditions negative numbers, irrational numbers, imaginary numbers, algebraic numbers, etc., became progressively more accepted and broke up the canonical meaning of the number concept.
Complex quantities involve imaginary numbers.
The square of an imaginary number is.
The turning point for him came with understanding the interpretation of negative and imaginary numbers as points on the complex plane.
A purely imaginary number is a complex number whose real part is zero.
The network consequently must consist entirely of inductors and capacitors and the impedance will be purely an imaginary number with zero real part.
See imaginary number for a discussion of the reality of complex numbers.
The name imaginary number was coined in the 17th century as a derogatory term, as such numbers were regarded by some as fictitious or useless.
