Source: wikibot/complex-numbers
= Complex numbers
{wiki=Complex_numbers}
Complex numbers are a type of number that extends the concept of the one-dimensional number line to a two-dimensional number plane. A complex number is composed of two parts: a real part and an imaginary part. It can be expressed in the form: \\\[ z = a + bi \\\] where: - \\( z \\) is the complex number. - \\( a \\) is the real part (a real number). - \\( b \\) is the imaginary part (also a real number).