/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 2 What is a library function?... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 6: Problem 2

What is a library function?

Short Answer

Expert verified
Answer: Some key features of a library function include reusability, being pre-written, wide availability, and being well-tested. An example of a library function in Python is the `sqrt()` function from the `math` library, which computes the square root of a given number. To use it, you can import the `math` library and then call the function as follows: ``` import math result = math.sqrt(16) print(result) ```

Step by step solution

01

Definition of a Library Function

A library function is a pre-written piece of code that is designed to perform a specific task. Developers create library functions to help programmers work more efficiently by providing commonly used pieces of code that can be easily integrated into their programs.
02

Features of a Library Function

Some key features of a library function include: 1. Reusability: Library functions can be easily called and used in multiple programs or projects without the need to rewrite the code. 2. Pre-written: Library functions are written by developers and can be imported into your code to save time and effort. 3. Wide availability: Many programming languages have extensive libraries with a wide range of functions to perform various tasks. 4. Well-tested: Library functions are typically tested thoroughly by the developer, making them more reliable than writing custom code from scratch.
03

Example of a Library Function

For example, in Python, the `math` library contains various mathematical functions that can be used in your program. To use the `sqrt()` library function that computes the square root of a given number, you would first import the `math` library and then call the function as follows: ``` import math result = math.sqrt(16) print(result) ``` In this example, the `sqrt()` function is part of the `math` library, and when called, it returns the square root of the provided number (16, in this case). By using library functions, we can perform complex tasks or calculations without having to write the code ourselves.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

What is a Boolean function?

Look at the following pseudocode function definition: Function Integer doSomething(Integer number) Return number * 2 End Function a. What is the name of the function? b. What type of data does the function return? c. Given the function definition, what will the following statement display? Display doSomething (10)

Why are library functions like 鈥渂lack boxes鈥�?

What is the purpose of the Return statement in a function?

What is an IPO chart?
See all solutions

Recommended explanations on Computer Science Textbooks

Cloud Services

Read Explanation

Computer Programming

Read Explanation

Theory of Computation

Read Explanation

Cybersecurity in Computer Science

Read Explanation

Blockchain Technology

Read Explanation

Game Design in Computer Science

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.