A function is a rule or set of rules or instructions for changing one input number into another output number. Functions are written in function notation with the name of the function (usually f ...

Function spaces, on the other hand, are collections of functions that share certain properties, allowing mathematicians to study their behavior and relationships systematically.

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

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