quaternion

n. 四个一组, 四个一套, 四元数

发音

UK /kwəˈtɜːni.ən/
US /kwɑˈtɜɹniɑn/
US /kwə-/
US /-ən/

词形变化

quaternions 复数 quaternions

释义与例句

n.
  1. 1.

    A group or set of four people or things.

  2. 2.

    A word of four syllables.

  3. 3.

    A type of four-dimensional hypercomplex number consisting of a real part and three imaginary parts (real multiples of distinct, independent square roots of −1 denoted by i, j and k); commonly used in vector mathematics and as an alternative to matrix algebra in calculating the rotation of three-dimensional objects.

    数学

词汇关系

名词

同义词 8

four quartet foursome IV quadruplet quaternary quaternity tetrad

上位词 2

figure digit

相关短语

quaternion algebra quaternion algebras hyperbolic quaternion

词源

From Middle English quaterniǒun, from Late Latin quaterniō, from quaternī (“four each”) + -iō, from quater (“four times”). Doublet of kern. The mathematics sense was coined by Irish mathematician and astronomer William Rowan Hamilton in 1843.

来源：wiktionary