Versioning History

This page provides a record of edits and changes made to this book since its initial publication in the Books4Languages Open Textbook Collection. Whenever edits or updates are made in the text, we provide a record and description of those changes here.

  • If the change is minor, (m).
  • If the edits involve substantial updates, (M).

The files posted by this book always reflect the most recent version.

Version Date Change Affected Web Page
1.0 2019 Primary release (M) Introduction, Form, Example, Use and Summary sections
2.0 2020 Complementary sections and Summary rephrase (M) Summary, Relate and Exercises sections
Videos and other URLs
3.0 2021 Upgrade, speeling and rephrase as appropriate (m) Introduction, Form, Examples and Use sections



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