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Definitions for
"Piecewise"
Keywords:
disjoint
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subsets
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formula
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mathematics
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defined
function is piecewise-defined, if its rule is given by more than one other formula for different sets of input.
npcts.edu
In mathematics, a piecewise-defined function f(x) of a real variable x is a function whose definition is given differently on disjoint subsets of its domain.
en.wikipedia.org