complex number

complex number

n.

Any number of the form a + bi, where a and b are real numbers and i is an imaginary number whose square equals -1.

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complex number

Noun

any number of the form a + bi, where a and b are real numbers and i = ∛-1

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complex number  (kmplks)

A number that can be expressed in terms of i (the square root of -1). Mathematically, such a number can be written a + bi, where a and b are real numbers. An example is 4 + 5i.

Thesaurus

Noun

1.

complex number - (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1 complex quantity, imaginary, imaginary number math, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement number - a concept of quantity involving zero and units; "every number has a unique position in the sequence" 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 imaginary part, imaginary part of a complex number - the part of a complex number that has the square root of -1 as a factor