Quadratic number field
= Quadratic number field
{wiki=Quadratic_field}
A quadratic number field is a degree-two extension of $\mathbb Q$, necessarily of the form $\mathbb Q(\sqrt d)$ for a square-free integer $d\ne0,1$.
= Quadratic number field
{wiki=Quadratic_field}
A quadratic number field is a degree-two extension of $\mathbb Q$, necessarily of the form $\mathbb Q(\sqrt d)$ for a square-free integer $d\ne0,1$.