While I do spend lots of time pushing the idea of linear approximations on my students, we do need nonlinear functions to describe most interesting physical phenomena.

Getting an all-optical AI to handle non-linear math Instead of sensing photons and processing the results, why not process the photons?

Non-linear physics is the study of systems where the output is not directly proportional to the input. Unlike linear systems, which follow simple, predictable relationships, non-linear systems exhibit ...

This article reviews work on the planning of experiments with response functions nonlinear in some parameters. Apart from older work on dilution series experiments and quantal bioassays, this field is ...

In this problem, the optimal path is one that maximizes the expected utility, with the utility function being piecewise-linear and concave. Such a utility function can be used to approximate nonlinear ...

Expansions of typically encountered non-linear functions Ah, well, you might say, so the coefficients of cos (3ωt) in the expansions of cos n (ωt) might be significant, but the power series expansions ...