Kleinian integer
= Kleinian integer
{wiki=Kleinian_integer}
A **Kleinian integer** is a concept from the field of hyperbolic geometry and complex analysis. Specifically, it is defined as a number that can be expressed in the form \\(a + b\\sqrt\{-d\}\\), where \\(a\\) and \\(b\\) are integers and \\(d\\) is a positive integer that is not a perfect square.