In this book, a distinction has been made between configurations and examples. A new icon for the configuration has been introduced for this. See chapter Conventions on page v. The individual exercise examples are now numbered to make it easier to exchange information about the examples they contain. The book’s index has also been completely revised to make it easy to look up and find the most important topics and terms. In addition to the index in the book, there is also an electronic online search in the book, which enables a full-text search in the book.

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