imaginary number

/ɪˌmædʒəˈnɛri ˌnʌmbər/

Other forms: imaginary numbers

Definitions of imaginary number

1. noun

   (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1
   synonyms: complex number, complex quantity, imaginary

   types:

   complex conjugate

   either of two complex numbers whose real parts are identical and whose imaginary parts differ only in sign

   real, real number

   any rational or irrational number

   pure imaginary number

   an imaginary number of the form a+bi where a is 0

   dot product, inner product, scalar product

   a real number (a scalar) that is the product of two vectors

   imaginary part, imaginary part of a complex number

   the part of a complex number that has the square root of -1 as a factor

   rational, rational number

   an integer or a number that can be expressed the quotient of two integers (where the denominator does not equal zero)

   irrational, irrational number

   a real number that cannot be expressed as a rational number

   type of:

   number

   a concept of quantity involving zero and units