recursion

名词 recursion:

1. (mathematics) an expression such that each term is generated by repeating a particular mathematical operation

re.cur.sion

n.Mathematics （名词）【数学】
An expression, such as a polynomial, each term of which is determined by application of a formula to preceding terms.
递推：多项式等一种表达式，每一项由前一项使用的公式来决定
A formula that generates the successive terms of a recursion.
递推方程：产生连续递推项的方程式

来源：
Late Latin recursiô recursiôn- [a running back]
后期拉丁语 recursiô recursiôn- [一个回流]
from Latin recursus [past participle of] recurrere [to run back] * see recur
源自 拉丁语 recursus [] recurrere的过去分词 [流回] *参见 recur

【引伸】
recur.sive
adj.（形容词）