Table 2-1. Special Symbols
as
Program Operators
Symbol Description
Program Operator Use
Example
Space
To improve program legibility; dis- 100
READ
Y
regarded by
PET
BASIC
ex
ce
pt
in
1
1
strings
!
Exclamation mark
(none)
..
Double quotation mark
Begins and ends a string
"STRING"
#
Pound sign
(none)
$
Dollar sign
Denotes string variable
C$
%
Percent sign
Denotes integer variable
C%
&
Ampersand
(none)
Single quotation mark
(none)
Il
Parentheses
1.
Enclose array subscripts
AR(1.5)
2.
Enclose function arguments
SQR(114)
3.
Denote expression
((A+2)/5)
12
evaluation precedence
*
Asterisk
Multiplication
4*16
+
Plus sign Addition. positive number
2+2
+57
Comma
1.
Separates items in a list
READ
A.B.C
2.
Denotes tabbed format
PRINT
X.Y.Z
-
Minus
sign
Subtraction. negative number
14-6
-32
Period
Decimal point
65.02
/
Slash
Division
1412
:
Colon
Separates
mu
Itiple statements
PRINT
A:GOTO 10
on
a line
;
Semicolon
Denotes continuous-line format
PRINT
A;B;C
<
Left carat
Less
than
A<100
=
Equal sign 1
Equal
to
IFA=B
2 Replaces
C=600
>
Right carat
Greater than
C>D
?
Question mark
Abbreviation for
PRINT
?"HII"
@
Atsign
(none)
[ ]
Brackets (none)
\
Backslash (none)
1
Up arrow Exponentiation A12
-
Left arrow (none)
19
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