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.

The Southern Economic Journal features original, refereed scholarly articles in all areas of economics as well as contributions on the pedagogy of economics. The journal also contains occasional ...

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 ...

For this, you also need non-linear thresholding functions that adjust the weights between the layers of neurons.

Long wires or distant wireless communications always garble the transmission. How can an engineer cure that distortion? Turns out, a lot of math and a little experience can work wonders. This author ...