Functions

A function is defined as a relation between a set of inputs having one output each. In simple words, a function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range. A function is generally denoted by f(x) where x is the input.

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Functions are self-contained blocks of code that perform a specific task. They can take arguments, return values, and are reusable in various parts of a program. Functions help to organize code, make it more modular, and improve maintainability. They can be defined using various programming languages, such as Python, Java, or C++. Functions can be classified into different types, including:

• Built-in functions: Pre-defined functions provided by the programming language

• User-defined functions: Functions created by the programmer

• Anonymous functions: Functions without a declared name

Functions are a fundamental concept in programming and are widely used in software development