# Before Executing The Manual Calculation; Preparation; Round Functions; 1·2 Preparation - Canon Canola SX-300 series Instructions Manual

Programmable calculator

m
Manua1 Calcu lation
§
1. Before Executing the Manual Calculation
1. Preparation
1·1 Round Functions
When executing manual calculation, rounding
can be selected by setting the Round Form Slide
Switch, and the number of digits from the deci -
mal point can be selected by setting the Decimal
Point Selector Dial.
The digit next to the
preselected position is round off, up or rounded
down.
ROUND
is performed when the
'd
key is
depressed, and the rounding function applies not
only to the displayed result but also to the stored
one in the butter register.
When the value rounded is composed of more
than
14
digits, the result is represented in the
integer priority system.
1-2
Preparation
1)
Check that the
Cal~ulator
is set in the operation
mode.
Namely, check that all the status indicating
lamps are turned off. If not, turn them off
following the instructions shown below;
If the ERROR Lamp is ON ... Depress the
0
key.
If the ENT, LRN, CHE, DBG, or UN FIN, lamp is
ON ... Depress the
key.
2)
Set the Printer at ON or OFF.
3)
Set both Decimal Point Selector Dial and Round
Form Slide Switch.
2.
Printing
When the Printer is ON, input data, symbols of the
key operations, and their results in the following
operations are automatically printed out.
a.
Operations related to memory
b.
Operations related to ordinary calculation
c.
Operations with the keys related to functions
d.
Operations of the
key.
3.
Display
Functional values and intermediate results (value of
each term and value in each parentheses) are dis -
played during calculation. All values are displayed
with the integer priority system and are free of the
setting position of the Decimal Point Selector Dial.
However,
jf
the
key is depressed, the value
shown in the Display will have been rounded accord-
ing to setting of round form and digits below the
decimal point.
§ 2. Calculation Examples
1.
subtractions, multiplications. and divisions
2+3x(-4)+872
5+7
-4.00
Decimal Point Selector Dial:
2
Round Form Slide Switch: .,
Depress the keys in the following order;
2
3
4
§
8G2LJ5
7
(-4.00)
2.
Calculation involving various input styles of
numerals with parentheses
30+4x (1.56 x 10
3
2.07 x 10
2
)
5.4420000000000 03
Decimal Point Selector Dial: F
Round Form Slide Switch: Any positions are
available.
Depress the keys in the following order;
30 04
0
1.56
3 LJ 2.07
El
2
(5.4420000000000 03)
3.
Calculations USing double parentheses
1
+
2 x (-3
+
4 x (6
+
3))
=
67.0
Decimal Point Selector Dial: 1
IT.'.'
Round Form Slide Switch:
5/4
\&'
Depress the keys in the following order;
I)"
182
3
4
6
3[0
V-t
(67.0)
Q'
4.
Power Calculation
3
+
2 x (1.3-(2.3
+
0.47)+ 0.70 x (2.93 - 1.12 x
10
2
))
=
-148.731
q,
Decimal Point Selector Dial: 3
Round Form Slide Switch:
5/4
if.\C
\!1
Depress
~he
keys in the following order;
3
20
1.3
2.3
0.47
§f~
-
..
~;"
G
0.70
2.93
1.12
2
(-148.731 )
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