Functions¶

In the field of mathematics, a function refers to a connection between a set of possible inputs and a set of potential outputs. It is essential to note that each input corresponds to one output. Therefore, a function can be regarded as a set of rules that assigns one specific element from the set of potential outputs to each item in the possible inputs. Functions are widely used in various fields such as physics, economics, computer science, chemistry, and spectroscopy to describe the relationship between quantities, represent geometric shapes, and model real-world situations.

Sometimes, all that's necessary are functions that can link together inputs and outputs.

graph LR
A[Inputs] --> B[Function]
B --> C[Outputs]