Octave sends output that is too long to fit on one screen through a pager like less or more . The part of Octave's help facility that allows you to read the complete text of the printed manual from within Octave uses a program called Info. When you invoke Info you will be put into a menu driven program that contains the entire Octave manual. Help for using Info is provided in this manual in section Using Info . A comment is some text that is included in a program for the sake of human readers, and that is not really part of the program.
Comments can explain what the program does, and how it works.
Nearly all programming languages have provisions for comments, because programs are typically hard to understand without them. The Octave interpreter ignores the rest of a line following a sharp sign or percent symbol. This means that users of Octave can use the same commands to get help for built-in functions, and for functions that you have defined. There are two classes of errors that Octave produces when it encounters input that it is unable to understand, or when it is unable to perform an action. A parse error occurs if Octave cannot understand something you have typed.