repeating
n. uncountablen. the act of doing or saying something again. In math, it is when a number or a pattern keeps appearing in the same way.
n. the act or instance of performing a process or utterance again. In a mathematical context, it refers to the recurrence of a digit or sequence of digits in a decimal expansion.
The repeating of the same mistake is very frustrating.
The student noticed a repeating of the digits four and five in the long division result.
While the initial results seemed random, a closer analysis of the data set revealed a subtle repeating of specific numerical sequences every third cycle.
Often used as a gerund to describe the action itself; in mathematics, it frequently appears as an attributive adjective ('repeating decimal') rather than a standalone noun.