Apple II manual Getting Started with Basic Basic Command SET, Asc, Chr$

PRINT commands will be directed to the display only. If the printer is turned on, all commands and data from PRINT commands will be directed to both the printer and display. With the printer off, data can still be directed to the printer by using the PRINT) command (see Subject 305).

Similarly, INPUT statements will output data to the printer in response to the printer control state. An INPUT! statement will output data to the printer even if the printer control is off (see

Subject 305).

200GETTING STARTED WITH BASIC

201BASIC COMMAND SET

This section is not intended to be a detailed course in BASIC programming. It will, however, serve as an excellent introduction for those of you unfamiliar with the language.

We recommend that you try each example in this section as it is presented. This will enhance your "feel" for BASIC and how it is used. Table 201-1 lists all the AIM 65 BASIC commands.

NOTE

Any time the cursor (^) is displayed in column 1 a BASIC command may be typed in. End all commands to BASIC by typing RETURN. The RETURN tells BASIC that you have finished typing the command. If you make an error, type a DEL (RUBOUT on a TTY) to eliminate the

last character. Repeated use of DEL will eliminate previous characters. An @ symbol will eliminate that entire line being typed.

Table 201.1. AIM 65 BASIC Commands

Commands	Input/Output
--------	------------
CLEAR	DATA
CONT	GET
FRE	INPUT
LIST	POS
LOAD	PRINT
NEW	READ
PEEK	SPC
POKE	TAB
RUN
SAVE	String Functions
	----------------
Program Statements	ASC
------------------	CHR$
DEF FN	LEFT$
DIM	LEN
END	MID$
FOR	RIGHT$
GOSUB	STR$
GOTO	VAL
IF...GOTO
IF...THEN
LET	Arithmetic Functions
NEXT	--------------------
ON...GOSUB	ABS
ON...GOTO	ATN*
REM	COS
RESTORE	EXP
RETURN	INT
STOP	LOG
USR	RND
WAIT	SIN
	SGN
	SQR
	TAN