BASIC Functions and Statements

 The sections in this chapter are made up of related BASIC functions and
 statements that have been grouped together according to programming tasks.
 Each group's functions and statements are presented in tabular form, listing
 the type of task performed by each function or statement (for example,
 looping or searching), and the corresponding program action that takes
 place.

 The following topics are summarized.
 *    Control-flow functions and statements
 *    Procedure-related statements
 *    Standard I-O functions and statements
 *    File I-O functions and statements
 *    ISAM File I-O functions and statements
 *    String-processing functions and statements
 *    Graphics functions and statements
 *    Trapping functions and statements

 You can use these tables both as a reference guide to what each statement or
 function does and as a way to identify related statements.


 Note
 Not all BASIC functions and statements are listed in these tables, only
 those recommended for structured programming. For complete information on
 all functions and statements, see the alphabetic entries that follow these
 tables.