recurrence

Recurrence refers to a situation where a process or problem repeats itself over time, often in a predictable pattern. In mathematics or algorithms, it describes a method where the solution to a problem depends on solutions to smaller instances of the same problem. For example, a recurring health issue might happen periodically, while in programming, a recursive function calls itself to solve a smaller part of a task until it reaches a simple case. Essentially, recurrence involves repeating steps or patterns that build upon previous ones to reach a solution or outcome.