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Building a Calculator with Ruby

Track :

Programming

Lessons no : 35

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What will you learn in this course?
  • Create a functional calculator application using Ruby programming language and object-oriented principles
  • Implement basic arithmetic operations such as addition, subtraction, multiplication, and division in Ruby
  • Design user-friendly command-line interfaces for calculator programs with input validation and error handling
  • Apply Ruby methods and modules to enhance calculator functionality and code reusability
  • Integrate Ruby libraries and gems to extend calculator features and improve performance
  • Develop scripts to automate calculations and data processing tasks with Ruby
  • Debug and troubleshoot Ruby code to ensure accurate calculations and reliable performance
  • Utilize Ruby's built-in features to handle complex mathematical expressions and calculations
  • Implement unit testing in Ruby to verify calculator accuracy and robustness
  • Deploy Ruby-based calculator applications for desktop or web environments with practical usability

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Lessons | 35
Introduction | Ruby | Tutorial 1
00:01:46

Introduction | Ruby | Tutorial 1
Windows Installation | Ruby | Tutorial 2
00:03:43

Windows Installation | Ruby | Tutorial 2
Mac Installation | Ruby | Tutorial 3
00:02:13

Mac Installation | Ruby | Tutorial 3
Hello World Setup | Ruby | Tutorial 4
00:05:43

Hello World Setup | Ruby | Tutorial 4
Drawing a Shape | Ruby | Tutorial 5
00:06:36

Drawing a Shape | Ruby | Tutorial 5
Variables | Ruby | Tutorial 6
00:10:35

Variables | Ruby | Tutorial 6
Data Types | Ruby | Tutorial 7
00:05:01

Data Types | Ruby | Tutorial 7
Working With Strings | Ruby | Tutorial 8
00:11:09

Working With Strings | Ruby | Tutorial 8
Math Numbers Ruby Tutorial 9
00:09:11

Math Numbers Ruby Tutorial 9
Getting User Input | Ruby | Tutorial 10
00:08:35

Getting User Input | Ruby | Tutorial 10
Building a Calculator | Ruby | Tutorial 11
00:07:25

Building a Calculator | Ruby | Tutorial 11
Building a Mad Libs Game | Ruby | Tutorial 12
00:04:51

Building a Mad Libs Game | Ruby | Tutorial 12
Arrays | Ruby | Tutorial 13
00:09:06

Arrays | Ruby | Tutorial 13
Hashes | Ruby | Tutorial 14
00:06:31

Hashes | Ruby | Tutorial 14
Methods | Ruby | Tutorial 15
00:08:05

Methods | Ruby | Tutorial 15
Return Statement | Ruby | Tutorial 16
00:05:18

Return Statement | Ruby | Tutorial 16
If Statements | Ruby | Tutorial 17
00:12:19

If Statements | Ruby | Tutorial 17
If Statements con t | Ruby | Tutorial 18
00:07:07

If Statements con t | Ruby | Tutorial 18
Building a Better Calculator | Ruby | Tutorial 19
00:08:28

Building a Better Calculator | Ruby | Tutorial 19
Case Expressions | Ruby | Tutorial 20
00:09:08

Case Expressions | Ruby | Tutorial 20
While Loops | Ruby | Tutorial 21
00:06:49

While Loops | Ruby | Tutorial 21
Building a Guessing Game | Ruby | Tutorial 22
00:13:13

Building a Guessing Game | Ruby | Tutorial 22
For Loops | Ruby | Tutorial 23
00:04:51

For Loops | Ruby | Tutorial 23
Exponent Method | Ruby | Tutorial 24
00:05:04

Exponent Method | Ruby | Tutorial 24
Comments | Ruby | Tutorial 25
00:04:58

Comments | Ruby | Tutorial 25
Reading Files | Ruby | Tutorial 26
00:08:51

Reading Files | Ruby | Tutorial 26
Writing Files | Ruby | Tutorial 27
00:08:59

Writing Files | Ruby | Tutorial 27
Handling Errors | Ruby | Tutorial 28
00:08:14

Handling Errors | Ruby | Tutorial 28
Classes Objects | Ruby | Tutorial 29
00:10:04

Classes Objects | Ruby | Tutorial 29
Initialize Method | Ruby | Tutorial 30
00:07:54

Initialize Method | Ruby | Tutorial 30
Object Methods | Ruby | Tutorial 31
00:05:44

Object Methods | Ruby | Tutorial 31
Building a Quiz | Ruby | Tutorial 32
00:09:30

Building a Quiz | Ruby | Tutorial 32
Inheritance | Ruby | Tutorial 33
00:07:49

Inheritance | Ruby | Tutorial 33
Modules | Ruby | Tutorial 34
00:05:36

Modules | Ruby | Tutorial 34
Inteactive Ruby irb | Ruby | Tutorial 35
00:04:05

Inteactive Ruby irb | Ruby | Tutorial 35


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2025-07-01

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The Ruby programming language is a highly portable general-purpose language that serves many purposes. Ruby is great for building desktop applications, static websites, data processing services, and even automation tools. It's used for web servers, DevOps, and web scraping and crawling .