What are Lambda functions ? How do Lambda functions differ from Built-in functions ? Write lambda function to calculate cube of a number. Also write the program to find cube of a number without using lambda function.

Lambda functions, also known as anonymous functions or function literals, are a fundamental concept in programming, particularly in functional programming paradigms. A lambda function is a small and concise block of code that can be defined inline without a formal name and is usually used as a one-time, disposable function. The term "lambda" originates from lambda calculus, a mathematical notation system developed in the 1930s.

Lambda functions offer several benefits. Firstly, they provide a compact syntax, allowing developers to define functions without the need for a separate function declaration. This can lead to more readable and maintainable code, especially for simple operations or when functions are used as arguments to other functions. Secondly, lambda functions promote code modularity and reusability by enabling the creation of functions on the fly. They can be used in situations where a named function would be cumbersome or unnecessary. Lastly, lambda functions often facilitate the use of higher-order functions, which accept other functions as parameters or return functions as results.

In many programming languages, lambda functions are primarily associated with functional programming, where they play a crucial role in expressing operations on collections ________ ____ __________ _________ ____ ____ ___ ______ ___ __________ __________ ________.
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