Texas Instruments TI-99/4A User Reference Guide

BASIC Reference Section
How This Section Is Organized
This reference guide is organized with usability as the key gu<J.!, <J.IH.I
is divided into the following functional groups.
I. General Information
2. Commands
3. General Program Statements
4. Input-Output Statements
5. Color Graphics and Sound
6. Built-In Numeric Functions
7. Built- In String Functions
8. User-Defined Functions
9. Arrays
10. Subroutines
11. File Processing
A glossary of often-used terms is found in the back of this manual.
Notational Conventions
At the beginning of the discussion for each Tl BASIC command or
statement, a line appears which shows the general format for
entering the command or statement. Certain notational conventions
have been used in these format lines. These conventions are
discussed here to help you understand how they are used.
{ } -
The braces indicate that you have a choice of what to use. You
may use only one of the items given within the braces.
[]- The brackets indicate that the item within is optional. You may
use it if you wish, but it is not required .
. . . -
The ellipsis indicates that the preceding item may be
repeated as many times as you desire.
italics - Words appearing in italics are a general description of the
item
or items that need to appear there. When words are printed ill
italics, you need to enter your own choice in place of the italicized
words when you enter the statement or command.
Examples
For each statement or command in this manual, program
examples are shown at the right. Each line you must enter is
indicated by the prompt character (» to the left of the line, just
as it appears on the screen. Lines which the computer places on
the screen do not show the prompt character.
The examples shown in this book are printed in upper-case
(large capital) letters. If you want to reproduce the examples
exactly as you see them here. press down the ALPHA LOCK key.
In most cases the computer accepts either upper-case or lower-
case letters. However, when you LIST a program, the screen
displays all reserved words, variable names, and subprogram
names as larl!:e capitals.
User's Reference Guide
II-]

Texas Instruments TI-99/4A Specifications

General

Brand	Texas Instruments
Model	TI-99/4A
Category	Desktop
Language	English