rubytarball.tar.gz

Do you want to be an interpreted language geek? Are you tired of getting entangled in the dense syntaxes? Does it irritate you to compile your code to machine language first? Are you looking for an easy-to-use scripting language? Well, Ruby is the best pick for you then!

Ruby is a smart, easy-to-use, functional, Object-Oriented programming language, which comes as a wondrous mix of Perl's scripting power, Pythonic capabilities and much more! As Matsumoto, creator of Ruby, implies: "I hope to see Ruby help every programmer in the world to be productive, and to enjoy programming, and to be happy. That is the primary purpose of Ruby language."

This introductory course will be providing you with hands-on practice with the support of a bunch of interactive illustrations, exercises and the integral topics of variables, built-in classes, objects, conditionals, blocks and much more!

Cool, right? Ready to dive into one of the most influential and demanding third generation programming language? Let's tune in!

Ruby: An Amateur's Pitch

## Problem Statement

In this exercise, you are given a nested array:

```ruby
numbers = [
  [1, 2, 3],
  [4, 5, 6],
  [7, 8, 9]
]
```

You need to sum the entries of the matrix in the rows and you need to come up with a solution so that you get the following output in return:

```ruby
[6, 15, 24]
```

$$$$
### Try it yourself

# Problem Statement

In this exercise, you are given a nested array:

```ruby
numbers = [
  [1, 2, 3],
  [4, 5, 6],
  [7, 8, 9]
]
```

You need to sum the entries of the matrix in the rows and you need to come up with a solution so that you get the following output in return:

```ruby
[6, 15, 24]
```

$$$$
## Try it yourself

Write a code such that it calculates the sums of all the enteries in rows in a matrix.

Why should you learn Ruby?

Learning to Program

Getting Started with IRB!

Variables

Built-in Classes: Numbers

Built-in Classes: Strings

Built-In Classes: Booleans

Built-In Classes: Symbols

Built-In Classes: Arrays

Built-In Classes: Hashes

Objects

Writing Methods

Writing Classes

Blocks

Nested Arrays

Get Ready for some more Drill!

Conditionals

Operators

Gear up for some Icing on the Cake!

Advanced Topics

Ready for a Long Haul?

Your Collateral Apparatus!

Exercise 1: Sum the rows of a matrix

Problem Statement