linearitylike
Linearitylike is a descriptor applied to a function, system, or model that behaves in a manner similar to linearity under certain conditions but does not strictly satisfy the axioms of linearity. In practice, linearitylike behavior means that the superposition and scaling properties are approximately maintained within a bounded tolerance.
A formal way to express linearitylike behavior is through an approximate additivity and homogeneity condition. For
Linearitylike behavior commonly arises in several scenarios. Piecewise linear functions approximate linearity within each segment; small-signal
Applications and limitations: Linearitylike models enable simpler analysis, design, and control, as well as tractable parameter