Casio CFX-9800G - Page 50

Chapter
2
[|][Manual
Calculations
|
Manual
calculations
are
those
that
you
input
manually,
as
on the
simplest
of
calculators:
They
are
to
be
distinguished
from
programmed
calculations.
This
chapter
provides
var-
ious
examples
to
help
you
become
familiar
with
the
manual
calculation
capabilities
ofthe
unit.
2-1 Arithmetic Calculations
Enter arithmetic calculations as they are written, from left to right.
*Use. the ©) key to input the minus sign before a negative value.
Calculations
are
performed
internally
with
a
15-digit
mantissa.
The
display
is
rounded
to
a
10-digit
mantissa
before
it
is
displayed.
Example Operation Display
2344.5-53=
-
25.5
23034.5G35369/
8-255
56x (- 12) +(—2.5)=268.8 56RIE1263 | Rare
:
ae
ee
{2.568
:
268.8
12360%7532%74103 =, 1236963753268
6.903680613
x
10”
74103
|6.903680613e+12
(6903680613000)
£
fe
fae
(45x 10)x(—2.8x 10-9) 4.56752. 360
= — 1.035 x 107° : : ©7795 | = 1,035E-03
(-
0.001035)
(Norm
4
display
format)
(2+3)x
10
=
500
26930163
1
3
2z
a8
500
(0/283
30)@)2-does
not
produce
the
correct
result.
Be
sure’
tee
:
to enter this calculation as Shown. -
°For mixed arithmetic calculations, multiplication and division are given’ muons over addition
and subtraction...
_ Example. i Operation | Z Display
345x6=33 ‘i ‘sESE6m) e
7x8-4x5=36 : 7ER8 ES 4Ea5ee i ~~" 36
142-3x425+6=6.6 _ (CN 2ESER4 EISEN ee | 6.6
Calculations Using Parentheses
Exatiple Operation” “Display
100 -(2+3)x4=80 1006 O2Eas| } ts4G 80
243 (445)=29 20a3baC04E95e9 |: 99
2*The final closed:parentheses (immediately before-operation.|, 1: a
of the @ key) may be omitted,-no.matter how, many. are ‘i
required.
—
:
:
(7-
2)x
(8+
5)=65
C7
B28
eS
"65
A multiplication sign immediately: before an open parenthe- * re :
sis may be omitted. _ ‘
so pryeeenace: 1060023703364) -55
ein this manual, the multiplication sign is always shown.
2x34+4 ae
rg
=(2x34+4)+5=2:
O2B384D)5e
2
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