Wang 300 Series - Page 33

Section
3
Operation
OPERATIONi
EXAMPLE
Multiply
3 x 4.7
REMARKS
Window
displays
the answer of
+
14. I . The log
register
is
cleared
to
I .
This is
the
general
meth-
od of multiplying;
key in first factor
and
ENTER
it,
then key in second
factor
and index
x=.
OPERATION/EXAMPLE
\Íultiply
2x(-3'Sx4
REMARKS
\\rindow
displays
the ansrver
of 11.
The
log
register
is
cleared to
+1.
This is the
general
method
for
chain multiplicarion.
\ore
that the
X= ke)
is depressed
onh aft:r the last
factor
is indered.
NOTE:
Olert-los may occur when large
numbers
are
multiplied
together.
In eeneral.
a
product
must
be
less
than 1O'q. Otherwise, overflow
rvill
occur
(a
flashing decimal
point
will indicate
this condition).
When
overflow occurs,
the decimal
point
is
remaindered by 10.
While
the characteristics
of
overflow are
physically
determined
by
the decimal
point
display,
the
log
register itself
has an upper
and
lower
maximum
range.
This capacity is
between e-40 and eao, cor-
responding
approximately to .42
x 10
17
and
2.35 x
lOt? respec-
tively.
Chained operations
resulting
in a number falling
above the
upper limit
yields
unpredictable
answers. For example,
a chain
multiplication
ol 5,000,000 x 4,000,000
x 30,000 results
in
+l
l0l11112.2
with a flashing decimal
point.
A chain multiplica-
tion
that falls
below the lower limit
yields
a zero for an answer.
For example,
.000000001 x
.000000001 results in zero.
3-13
KEYSTROKE
CODE
(EYSTROKE
coDg
3 63
75
ENTER 41
-7
67
4 64
x-- 46
KEYBOABD
CODE KÉYBOARD
CODE
2 62 ENTER
41
E NTEB
41
4 64
3 63
x= 46
CHANGE
SIGN 77