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  • Book Overview & Buying Mastering Julia
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Mastering Julia

Mastering Julia - Second Edition

By : Malcolm Sherrington
4.3 (3)
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Mastering Julia

Mastering Julia

4.3 (3)
By: Malcolm Sherrington

Overview of this book

Julia is a well-constructed programming language which was designed for fast execution speed by using just-in-time LLVM compilation techniques, thus eliminating the classic problem of performing analysis in one language and translating it for performance in a second. This book is a primer on Julia’s approach to a wide variety of topics such as scientific computing, statistics, machine learning, simulation, graphics, and distributed computing. Starting off with a refresher on installing and running Julia on different platforms, you’ll quickly get to grips with the core concepts and delve into a discussion on how to use Julia with various code editors and interactive development environments (IDEs). As you progress, you’ll see how data works through simple statistics and analytics and discover Julia's speed, its real strength, which makes it particularly useful in highly intensive computing tasks. You’ll also and observe how Julia can cooperate with external processes to enhance graphics and data visualization. Finally, you will explore metaprogramming and learn how it adds great power to the language and establish networking and distributed computing with Julia. By the end of this book, you’ll be confident in using Julia as part of your existing skill set.
Table of Contents (14 chapters)
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Scope

In the previous example, we used condition ? statement–1 : statement–2 notation as a shorthand for if-else-end.

It was necessary to wrap the code following the colon in begin-end.

This is a form of a block, as are if statements, and for and while loops.

Julia always signals the termination of the most recent block by way of the end statement.

Other examples of blocks we have met so far are those introduced by module, function, and struct (type) definitions and by try and catch statements.

The question we need to consider is, if a variable is declared inside a block, is it visible outside it? This is controlled by Julia’s scoping rules.

Since if-else or begin-end blocks do not affect a variable’s visibility, it is better to refer to the current scope rather than the current block.

There are new scoping rules applying to the visibility of variables declared at the top level.

These were discussed in Chapter 1, and you are asked...

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Mastering Julia
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