Function which is defined by multiple sub-functions each over its own interval
Also known as piecewise-defined function · hybrid function · definition by cases
5 identifiers linking piecewise function across the web's reference databases
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In mathematics, a piecewise function is a function whose domain is partitioned into several intervals ("subdomains") on which the function may be defined differently. Piecewise definition is actually a way of specifying the function, rather than a characteristic of the resulting function itself, as every function whose domain contains at least two points can be rewritten as a piecewise function. The first three paragraphs of this article only deal with this first meaning of "piecewise".