Definitions

1. adjective

Done or considered in separate parts or pieces, rather than as a single whole.

“The function is defined piecewise, with different formulas for different intervals.”

2. noun

A function or mathematical relation that is defined in separate parts or pieces.

“The piecewise function has a steep slope in the first quadrant and a flat slope in the second quadrant.”

3. adverb

In a piecewise manner, or in separate parts or pieces.

“The data was analyzed piecewise, with each section being examined separately.”