Definition

Examples

• 集合的基数表示元素的个数。
  Jíhé de jī shù biǎoshì yuánsù de gèshù.
  The cardinal number of a set indicates the number of elements.
• 计算机中常用二进制，它的基数是2。
  Jìsuànjī zhōng cháng yòng èrjìnzhì, tā de jī shù shì èr.
  In computers, binary is commonly used; its base number is 2.
• 两个集合的基数相等，则它们等价。
  Liǎng ge jíhé de jī shù xiāngděng, zé tāmen děngjià.
  If the cardinal numbers of two sets are equal, then they are equivalent.