二に次じ体たい

noun

quadratic field

In algebraic number theory, a quadratic field is a field extension of the rational numbers of degree 2. It is obtained by adjoining the square root of a square-free integer.

• 二に次じ体たいの整せい数すう環かんについて研けん究きゅうしている。

  I am researching the ring of integers of a quadratic field.

• 実じつ二に次じ体たいと虚きょ二に次じ体たいでは性せい質しつが異ことなる。

  Real quadratic fields and imaginary quadratic fields have different properties.