Commodore VIC-20 User Manual page 173

LEFTS (unction 131
LENgth function 131
Less than 115
LET statement 124
Line numbers 78
LIST command 8, 9, 50, 116
LOAD command 109, 116
Loading programs on tape 1G9
LOGarithm function 130
Loops, time delay bb. 78. 96
Lower case characters 20
M
Mailing label program 92
Mathematics
formulas 24. 115. 123, 148, 160
function table 14S
symbols 115
Memory 36, 80. 125. 126, 130
Memory expansion 107
MIDS function 43. 131
Modulator, RF VJ
Multiplication 115
Music
pitch 68
sound ettects 135
table of notes 73
VIC piano 75
writing Songs 77
N
Names
program 109
variable 86
Nested Loops 122
NEW command 7
NEXT statement 125
Noise 71, 74
NOT operator 115
Numbers 23, 24, 115, 123
Numeric variables 66, 113
ON statement 125
OPEM statement 12$
Operators
Arithmetic 24T114
Logical 115
Relational 115
Parentheses 115
PEEK function 130
Peripherals 106
Pi 20
POKE statement 36, 60, 125
Ports. I/O 149
PO3 function 132
PRINT statement 5, 21r 127
PRINTtf 127
Programs
editing 8, 50
fine numbering 79
loading I saving on tape 109
Prompt 84
Q
Quotation marks 96
Random numbers 40, 43, 103
READ statement 79.128
REMark statement 128
Reserved Words 36
Reset (see Restore Key)
Restore Key 17, 26
RESTORE statement 128
Return key 18
RETURN statement 126
RIGHTS function 132
RND function 40.43, 130
ROCKET COMMAND program 153
RUN command 117
RUN /STOP key 19
SAVE command 109, 117
Saving proQrams on tape 109
Screen memory maps 63, 143-144
Serial bus 107
SGN function 130
Shift key 18
SlNe function 131
Sound effects 135
SPC function 132
SOR function 131
ST system variable 86
Stop Key 19
STOP command 128
String variables 42. 86, 113
STRS function 132
Subscripted Variables 114
Subtraction 115
SYS statement 12B
Syntax Error 6
163