The determination of a succession of elements (as numbers or functions) by operation on one or more preceding elements according to a rule or formula involving a finite number of steps.

【数】递归(式)；递推(根据包含一限定步骤的规则或方程式，对一个或以上的前列元素进行运算而对一系列元素如数目，函数等的测定)。