Mathematically similar to a linear relationship is the concept of a linear function. In one variable, a linear function can be written as follows: This is identical to the given formula for a ...

But the basic definition of linearity holds for much more complicated equations, such as the differential equations used in engineering to describe dynamic systems. While linear functions are easy ...

Investopedia / Michela Buttignol Nonlinear regression is a form of regression analysis in which data is fit to a model and then expressed as a mathematical function. Simple linear regression ...