Source: wikibot/imaginary-number
= Imaginary number
{wiki=Imaginary_number}
An imaginary number is a mathematical concept that is used to extend the real number system. It is defined as a number that can be expressed as a real number multiplied by the imaginary unit \\(i\\), where: \\\[ i = \\sqrt\{-1\} \\\] This means that \\(i^2 = -1\\). Imaginary numbers are typically expressed in the form \\(bi\\), where \\(b\\) is a real number.