What is Hypatia?: Introduction, Features and Requirements, About Hypatia, License.
Installation: Installing Hypatia, Opening Hypatia for the First Time, Updates.
Reverse Polish Notation (RPN): Hypatia's RPN, Hypatia's Enhanced RPN.
Input Lines:The Input Prompt, Calculation Lines, Command Lines, Comment Lines.
Input Editor: Writing an Input Line, Scrolling Through Past Input Lines.
Hypatia's Files: About Files, The Configuration File hy.ini, The Result File hy, The Recent Input Line File hyin, The Log File hy.log.
Viewing and Editing Files: External Editor, Opening a File, Short EDIT Commands, Creating a File, List of Files.