0.5
0.0165432
-0.0000009
1.6
24.0055
-64.2
3.1416
Chapter
3:
Programming
the
VIC
20 Computer
61
Note
that
if you
put
commas in a number, you will get a syntax error
message.
For
example, use 65000, not 65,000.
ROUNDOFF
Numbers always have
at
least eight digits
of
precision; they can have up
to nine, depending on the number. VIC BASIC rounds off additional
significant digits. Usually it rounds
up
when the next digit
is
more than 5 and
rounds down when the next digit is 4 or less,
but
there are some roundoff
quirks.
Here are some examples.
1._
••
66
.S5SS5555~~
____
__
"i~i_""!
l Appears
to
round down
on
6
•
S55S5SS5ft....__
~
or less, up
on
7
or
more
,~,.JtijUJ'*jU~,i
•
111111111t....
__
?llH1tUll
I Appears
to
round down
on
5
or
. 'I'
11"1'
12 less, up
on
6 or more
.111
+1-
__
SCIENTIFIC
NOTATION
Large floating point numbers are represented using scientific notation.
When numbers with ten
or
more digits are entered, VIC BASIC automati-
cally converts these numbers to scientific notation.
RERDY.
;~)I"1\i
"1.
iiiiili1E+09
READY.
1l11\UUltS·
1.
11111112E+09
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