Answered: Identify two basic characteristics of…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

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Identify two basic characteristics of Functional Programming
paradigm and with an example program show those characteristics in Python.

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Functional Programming Characteristics

Functional programming languages are specially designed to handle symbolic computation and list processing applications. Functional programming is based on mathematical functions. Some of the popular functional programming languages include: Lisp, Python, Erlang, Haskell, Clojure, etc.

Functional Programming – Characteristics

The most prominent characteristics of functional programming are as follows −
Functional programming languages are designed on the concept of mathematical functions that use conditional expressions and recursion to perform computation.
Functional programming supports higher-order functions and lazy evaluation features.
Functional programming languages don’t support flow Controls like loop statements and conditional statements like If-Else and Switch Statements. They directly use the functions and functional calls.
Like OOP, functional programming languages support popular concepts such as Abstraction, Encapsulation, Inheritance, and Polymorphism.
Pure Functions: These functions have two main properties. First, they always produce the same output for the same arguments irrespective of anything else. Secondly, they have no side-effects i.e. they do modify any argument or global variables or output something.
Recursion: There are no “for” or “while” loop in functional languages. Iteration in functional languages is implemented through recursion.

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