四元数

Traditional form:

四元數

Pinyin (reading):

sìyuánshù

Definitions:

• quaternion (math.)

Characters:

• 四 - four
• 元 - first; dollar; origin; head
• 数 - count, number, several

Traditional characters:

• 四 - four
• 元 - first; dollar; origin; head
• 數 - count, number, several