•
Example 5:
1
2
↔
0.5 (Fraction
↔
Decimal)
1
C
2
=
1 2.
C
0.5
C
1 2.
•
Example 6:
1
↔
1
C
2
C
3
1 2 3.
A
B
5 3.
A
B
1 2 3.
Percentage Calculations
• Use COMP mode for percentage calculations.
•
Example 1:
To calculate 12% of 1500.
1500
-
12
A
v
180.
•
Example 2:
To calculate what percentage of 880 is 660.
660
\
880
A
v
75.
•
Example 3:
To add 15% onto 2500.
2500
-
15
A
v
+
2875.
•
Example 4:
To discount 3500 by 25%.
3500
-
25
A
v
,
2625.
•
Example 5:
To calculate the following using a constant.
12% of 1200 = 144
18% of 1200 = 216
23% of 1200 = 276
(12
%)
1200
-
-
12
A
v
K
144.
(18 %)
18
A
v
K
216.
(23 %)
23
A
v
K
276.
•
Example 6:
300 grams are added to a test sample
originally weighing 500 grams, producing a final test
sample of 800 grams. What percent of 500 grams is 800
grams?
300
+
500
A
v
160.
•
Example 7:
What is the percentage change when a value
is increased from 40 to 46?
46
,
40
A
v
15.
Scientific Function Calculations
• Use COMP mode for scientific function calculations.
• Some calculations may take a long time to complete.
• Wait for result before starting next calculation.
•
π
= 3.1415926536.
k
Sexagesimal Functions
•
Example 1:
14°25’36” + 12°23’34” = 26°49’10”
14
I
25
I
36
I
+
12
I
23
I
34
I
=
26°49°10.
•
Example 2:
1°2’3” + 4.56 = 5.594166667
1
I
2
I
3
I
+
4.56
=
5.594166667
•
Example 3:
sin 87°65’43.21” = 0.999447513 (DEG mode)
87
I
65
I
43.21
I
S
0.999447513
•
Example 4:
1.23
↔
1°13’48” 1.23
I
1°13°48.
I
1.23
I
1°13°48.
•
Example 5:
12°34’
↔
12.56666667
12
I
34
I
A
O
12.56666667
You can also use
I
when inputting values to convert
between sexagesimal and decimal.
k
Trigonometric/Inverse Trigonometric Functions
•
Example 1:
sin (
π
6
rad) (RAD mode)
A
x
\
6
=
S
RAD
0.5
•
Example 2:
cos 63°52’41” (DEG mode)
63
I
52
I
41
I
W
DEG
0.440283084
•
Example 3:
tan (
35gra)(GRA mode)
35
E
h
GRA
–0.612800788
•
Example 4:
cos
–1
(
2
2
rad) (RAD mode)
2
A
L
\
2
=
A
V
RAD
0.785398163
•
Example 5:
To convert 45 degrees to radians, grads, and
back to degrees
F
4
45
DEG
45.
A
F
5
RAD
0.785398163
A
F
6
GRA
50.
A
F
4
DEG
45.
Repeated conversion between angle units can cause
normally minute error to accumulate, resulting in poor
precision.
k
Hyperbolic/Inverse Hyperbolic Functions
•
Example 1:
sinh 3.6
3.6
M
S
18.28545536
•
Example 2:
sinh
1
30
30
M
A
j
4.094622224
2
3
5
3
fx-82SOLAR II
fx-260SOLAR II
fx-260SOLAR II NF
Basic Calculations
• Use the COMP mode for basic calculations.
•
Example 1:
23
4.5
53
23
+
4.5
,
53
=
–25.5
•
Example 2:
56
(
12)
(
2.5)
56
-
12
E
\
2.5
E
=
268.8
•
Example 3:
2
3
(1
10
20
)
2
\
3
-
1
e
20
=
6.666666667
19
•
Example 4:
7
8
4
5 = 36
7
-
8
,
4
-
5
=
36.
•
Example 5:
= 0.3
4
-
5
\
6
A
N
=
0.3
•
Example 6:
2
[7
6
(5
4)]
122
2
-
O
7
+
6
-
O
5
+
4
P
P
=
122.
• You can skip all
P
operations before the
=
key.
•
Example 7:
4
3
π
5
3
4
\
3
-
A
x
-
5
A
N
=
523.5987756
Constant Calculations
• Press
+
,
,
,
-
,or
\
twice after inputting a number to
make that number a constant.
• “K” is on the display while a constant is being used.
• Use the COMP mode for constant calculations.
•
Example 1:
2.3
3, then 2.3
6
(2.3
3)
2.3
+
+
3
=
K
5.3
(2.3
6)
6
=
K
8.3
•
Example 2:
12
2.3, then 12
(
9)
(12
2.3)
12
-
-
2.3
=
K
27.6
(12
(
9))
9
E
=
K
–108.
•
Example 3:
17
17
17
17
68
(17
17)
17
+
+
=
K
34.
(17
17
17)
=
K
51.
(17
17
17
17)
=
K
68.
•
Example 4:
1.7
4
8.3521
(1.7
2
)
1.7
-
-
=
K
2.89
(1.7
3
)
=
K
4.913
(1.7
4
)
=
K
8.3521
Memory Calculations
• Use the COMP mode for memory calculations.
• Use
AY
,
|
,
A{
and
Z
for memory calculations.
AY
replaces current memory contents.
• “M” appears when there is a value in memory.
• To clear memory, press
0AY
or
tAY
.
•
Example 1:
(53
6)
(23
8)
(56
2)
(99
4)
210.75
(53
6)
53
+
6
=
A
Y
M
59.
(23
8)
23
,
8
|
M
15.
(56
2)
56
-
2
|
M
112.
(99
4)
99
\
4
|
M
24.75
(Memory recall)
Z
M
210.75
•
Example 2:
To calculate the following using memory as
shown.
M
13.
•
Example 3:
To calculate the following using memory and
a constant: (12
3)
(45
3)
(78
3)
135.
(12
3)
3
-
-
12
=
A
Y
MK
36.
(45
3)
45
A
{
MK
135.
(78
3)
78
|
MK
234.
(Memory recall)
Z
MK
135.
Fraction Calculations
(fx-82SOLAR
II
/fx-260SOLAR
II
only)
• Use COMP mode for fraction calculations.
• Total number of digits (including division marks) cannot
exceed 10.
•
Example 1:
1
2
C
3
+
4
C
5
=
1 7 15.
•
Example 2:
3
1
4
3
C
1
C
4
+
1
C
2
C
3
=
4 11 12.
•
Example 3:
2
C
4
2 4.
=
1 2.
•
Example 4:
1.6
2.1
1
C
2
+
1.6
=
2.1
Fraction/decimal calculation result is always decimal.
6
4
5
2
3
4
5
7
15
1
4
2
3
11
12
2
4
1
2
1
2
Handling Precautions
• Be sure to press the
5
key before using the calculator.
• Your calculator is made up of precision components.
Never try to take it apart.
• Avoid dropping your calculator and otherwise subjecting it
to strong impact.
• Do not store the calculator or leave it in areas exposed to
high temperature or humidity, or large amounts of dust.
When exposed to low temperatures, the calculator may
require more time to display results and may even fail to
operate. Correct operation will resume once the calculator
is brought back to normal temperature.
• The display will go blank and keys will not operate during
calculations. When you are operating the keyboard, be
sure to watch the display to make sure that all your key
operations are being performed correctly.
• With certain calculations, it may take some time before the
result is displayed. The display is blank while a calculation
is in progress.
• Avoid using volatile liquids such as thinner or benzine to
clean the unit. Wipe it with a soft cloth, or with a cloth
that has been dipped in a solution of water and a neutral
detergent and wring out.
• In no event will the manufacturer and its suppliers be liable
to you or any other person for any damages, expenses,
lost profits, lost savings, or any other damages arising
out of malfunction, repairs, or insufficient light. The user
should prepare physical records of data to protect against
such data loss.
• Never dispose of the liquid crystal panel, or other
components by burning them.
• Before assuming malfunction of the unit, be sure to
carefully reread this manual and ensure that the problem
is not due to operational error.
• The contents of this manual are subject to change without
notice.
• No part of this manual may be reproduced in any form
without the express written consent of the manufacturer.
• Be sure to keep all user documentation handy for future
reference.
Modes
Application
Key
Operation
Mode
Name*
Standard deviation calculations
Fl
SD
Normal calculations
F0
COMP
Calculations using degrees
F4
DEG
Calculations using radians
F5
RAD
Calculations using grads
F6
GRA
Number of decimal place
specification
F7
FIX
Number of significant digit
specification
F8
SCI
Cancels FIX and SCI settings
F9
NORM
* Display indicators show current mode setting. Absence of
display indicator indicates COMP Mode.
• The above table is printed on the back of the calculator.
Note!
• A mode guide is located at the top of the display screen.
• DEG, RAD, and GRA modes can be used in combination
with COMP and SD modes.
•
F9
does not exit SD mode.
•
F0
exits SD mode.
•
F0
does not clear SCI or FIX specifications.
• Always press
t
before entering DEG, RAD, and GRA
modes.
• Remember to always set the operating mode and angular
unit (DEG, RAD, GRA) before starting your calculation.
User’s Guide
RJA536287-001V02
EN
SA1612-B Printed in China
© 2017 CASIO COMPUTER CO., LTD.
k
Common and Natural Logarithms, Exponents
•
Example 1:
log 1.23
1.23
R
0.089905111
•
Example 2:
In 90 (
log
e
90)
90
T
4.49980967
•
Example 3:
Iog 64
Iog 4
64
R
\
4
R
=
3.
•
Example 4:
10
0.4
5
e
3
.4
A
Q
+
5
-
3
E
A
U
=
2.760821773
•
Example 5:
2
3
2
w
3
=
8.
•
Example 6:
2
3
2
w
3
E
=
0.125
•
Example 7:
e
10
10
A
U
22026.46579
•
Example 8:
log sin 40°+ log cos 35° (DEG mode)
40
S
R
+
35
W
R
=
DEG
–0.278567983
To convert to antilogarithm:
A
Q
DEG
0.526540784
•
Example 9:
8
1/3
8
A
s
3
=
2.
k
Square Roots, Cube Roots, Squares,
Reciprocals and Factorials
•
Example 1:
2
3
5
2
A
L
+
3
A
L
-
5
A
L
=
5.287196909
•
Example 2:
3
5
3
27
5
A
D
+
27
E
A
D
=
–1.290024053
•
Example 3:
(
30)
2
30
E
K
900.
•
Example 4:
1
1
3 4
1
3
A
X
,
4
A
X
=
A
X
12.
•
Example 5:
8!
8
A
f
40320.
k
FIX, SCI, NORM, RND, RAN#, ENG Calculations
•
Example 1:
1.234
1.234, rounding result to two places
(FIX 2).
F
7
2
FIX
0.00
1.234
+
1.234
=
FIX
2.47
•
Example 2:
1.234
1.234, rounding input to two places.
F
7
2
1.234
A
b
+
1.234
A
b
=
FIX
2.46
• Press
F
9
to clear FIX specification.
•
Example 3:
1
3, displaying result with two significant
digits (SCI 2).
F
8
2
SCI
0.0
00
1
\
3
=
SCI
3.3
–01
• Press
F
9
to clear SCI specification.
•
Example 4:
To convert 56,088 meters to kilometers.
56088
A
J
56.088
03
•
Example 5:
To convert 0.08125 grams to milligrams.
.08125
A
J
81.25
–03
•
Example 6:
To generate a random number between
0.000 and 0.999.
Example (results differ each time)
A
c
0.664
k
Coordinate Conversion
•
Example 1:
To convert polar coordinates (
r
2,
60°) to
rectangular coordinates (
x
,
y
). (DEG mode)
x
2
A
z
60
=
DEG
1.
y
A
N
DEG
1.732050808
A
N
swaps displayed value with value in memory.
•
Example 2:
To convert rectangular coordinates (1, 3 ) to
polar coordinates (
r
,
). (RAD mode)
r
1
A
y
3
A
L
=
RAD
2.
θ
A
N
RAD
1.047197551
k
Permutation
•
Example:
To determine how many different 4-digit values
can be produced using the numbers 1 through 7.
7
A
m
4
=
840.
k
Combination
•
Example:
To determine how many different 4-member
groups can be organized in a group of 10 individuals.
10
A
n
4
=
210.
CASIO Worldwide Education Website
http://edu.casio.com
Manuals are available in multi languages at
http://world.casio.com/manual/calc
fx-82SOLAR
,,
fx-260SOLAR
,,
fx-260SOLAR
,,
NF
EN
fx-82SOLAR̲260SOLAR II̲NF̲EN̲161212.indd 1
fx-82SOLAR̲260SOLAR II̲NF̲EN̲161212.indd 1
16/12/12 10:51
16/12/12 10:51
