Atari 400 User Manual

Atari BASIC Reference Guide 107
CONFIGURATION
DEG
EXAMPLE
10 DEG
20 PRINT SIN(90)
RUN
1
The example shows that the sine of 90° is 1. If the DEG statement
was not present, the result would be 0.8939970243.
DIM (DI.)
The DIM statement is used to set aside memory space for strings
and 1
or 2 dimensional arrays. Two dimensional arrays, or
matrices, can be used to make tables of values.
CONFIGURATION
X(a[,b]) r Y(c[ , d]~
DIM X$(a) lY$(C) J'
A DIM statement can include any combination of numeric and
string variable dimension statements. For example, DIM
A(10,10), 8(9), A$(90), 8$(90) dimensions all four variables in one
statement.
A string
variable can contain only one string. The dimension of a
string
variable indicates the maximum number of characters that
the string variable can contain.

Atari 400 Specifications

General

Manufacturer	Atari
Model	400
Type	Home Computer
Release Year	1979
CPU	MOS Technology 6502
CPU Speed	1.79 MHz
ROM	10 KB
Operating System	Atari OS
Keyboard	Membrane keyboard
RAM	8 KB (expandable to 48 KB)
Graphics	ANTIC and GTIA chips
Sound	4 channels
Display	RF output for connection to TV
Storage	Optional cassette tape drive or floppy disk drive
Ports	Cartridge
Display Resolution	320x192 (16 colors)