A piecewise function is a type of function that is defined by multiple sub-functions, each of which applies to a specific interval or condition within the overall domain. These functions are used to describe situations where a single formula cannot capture the behavior of the function across its entire domain, allowing for different rules to be applied to different parts of the input values. This flexibility makes piecewise functions particularly useful in modeling real-world scenarios that involve distinct behaviors in different ranges of input.
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