Curve Fitting
Curve fitting is the process of constructing a mathematical function/model with the best fit to a series of data points.
Curve Fitting to Model Data Points
In the Modeling Process training phase, curve fitting relates to model data points overfitting, underfitting and bias-variance tradeoff:
Curve Fitting to Algebraic and Trigonometric Functions
The illustrated example below shows four polynomial curves fitted to sine function data points: