---
tags: english
---
# 怎麼稱呼 Filter 所過濾的東西與濾後剩餘的東西?
Ref.: [What do you call the two components resulting from filtering?](https://ell.stackexchange.com/questions/53928/what-do-you-call-the-two-components-resulting-from-filtering)
* 過濾器: **filter**
* **A rule** to get `set A` (欲獲得集合 A 的規則)
* 濾出的東西 (符合過濾條件): **filtrate**
* The `set A` which is filtered by the rule. (集合 A)
* 過濾後剩餘的東西 (不符合過濾條件): **residue**
* The complement set of `set A`. ($A^c$, 集合 A 的[補集](https://en.wikipedia.org/wiki/Complement_(set_theory)))