Piecewise linear function

A function (blue) and a piecewise linear approximation to it (red).

A piecewise linear function in two dimensions (top) and the convex polytopes on which it is linear (bottom).

In mathematics, a piecewise linear function is a real-valued function defined on the real numbers or a segment thereof, whose graph is composed of straight-line sections. It is a piecewise-defined function, each of whose pieces is an affine function.

单词	Piecewise linear function
释义	Piecewise linear function 英语百科 Piecewise linear function In mathematics, a piecewise linear function is a real-valued function defined on the real numbers or a segment thereof, whose graph is composed of straight-line sections. It is a piecewise-defined function, each of whose pieces is an affine function.
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