# Mathematical Functions¶

A function in mathematics^{1} is a relation between a value in a domain and a value in a codomain across a range. In programming terms, this means that mathematical functions are single-arity and pure. In other words, they take a single value and, given the same value, always produce the same output.

f : Domain \rightarrow Codomain

## Language¶

## Backlinks¶

- A Programmers Introduction to Mathematics
- Topic: Maths
- Codomain
- Range
- Domain
- Polynomial
- A polynomial is a function with n coefficients, where n is known as the degree. A single-variable polynomial f has the form

- Injectivity
- In set theory, injectivity is a property of a function. Given a function f : A \\rightarrow B, if when supplied with every input in A f produces every possible output in B then f is injective.

- Language: Function over a set