Learn about function notation, how to find an inverse function by changing the subject, and how to work with composite functions.

Functions are written in function notation with the name of the function (usually f or g), a variable written in brackets and an expression. When calculating the value of a function, the input ...

Function spaces, such as Bergman, Hardy, and Q spaces, provide structured environments that categorise these functions based on integrability, smoothness, and boundary behaviour.