Important Information
• The displays and illustrations (such as key markings) shown in this User’s
Guide are for illustrative purposes only, and may differ somewhat from the
actual items they represent.
• The contents of this manual are subject to change without notice.
• In no event shall CASIO Computer Co., Ltd. be liable to anyone for special,
collateral, incidental, or consequential damages in connection with or
arising out of the purchase or use of this product and items that come with
it. Moreover, CASIO Computer Co., Ltd. shall not be liable for any claim of
any kind whatsoever by any other party arising out of the use of this product
and the items that come with it.
• Be sure to keep all user documentation
Sampl
ss
s
o
•
o
y
A and malfunction of the
cattery in the calculator. Do not try using
the the battery is completely dead (fx-85ES PLUS).
• The battery that comes with the calculator discharges slightly during
shipment and storage. Because of this, it may require replacement
sooner than the normal expected battery life.
• Do not use an oxyride battery* or any other type of nickel-based
primary battery with this product. Incompatibility between such
batteries and product specifications can result in shorter battery life
and product malfunction.
• Avoid use and storage of the calculator in areas subjected to
temperature extremes, and large amounts of humidity and dust.
E-2
• Do not subject the calculator to excessive impact, pressure, or
bending.
• Never try to take the calculator apart.
• Use a soft, dry cloth to clean the exterior of the calculator.
• Whenever discarding the calculator or batteries, be sure to do so in
accordance with the laws and regulations in your particular area.
* Company and product names used in this manual may be registered
trademarks or trademarks of their respective owners.
Removing the Hard Case
Before using the calculator, slide its hard
case downwards to remove it, and then affix
the hard case to the back of th
shown in the il
Pr
ke
Th
abo
The he different colors of the
altertion key text mean.
s
Keycap function
If key marking text
is this color:
It means this:
Press ꢁ and then the key to access the
Yellow
applicable function.
Press # and then the key to input the
applicable variable, constant, or symbol.
Red
E-3
Reading the Display
The display of the calculator shows expressions you input, calculation results,
and various indicators.
Input expression
Indicators
Math
Math
Calculation result
• If a ꢀ indicator appears on the right side of the calculation resuleans
the displayed calculation result continues to the B to
scroll the calculation result displa
• If a E indicator apans
the he
on
ꢂ
laces is in effect.
number of significant digits is in effect.
Natural Display is selected as the display format.
Math
Calculation history memory data is available and can be
replayed, or there is more data above/below the current
screen.
ꢁ>
The display currently shows an intermediate result of a
multi-statement calculation.
Disp
Important: For some type of calculation that takes a long time to execute,
the display may show only the above indicators (without any value) while it
performs the calculation internally.
E-4
Using Menus
Some of the calculator’s operations are performed using menus. Pressing
ꢃ or E, for example, will display a menu of applicable functions.
The following are the operations you should use to navigate between
menus.
• You can select a menu item by pressing the number key that corresponds
to the number to its left on the menu screen.
• The ꢁ indicator in the upper right corner of a menu means there is another
menu below the current one. The > indicator means another menu above.
Use A and D to switch between menus.
• To close a menu without selecting anything, press ꢂ.
Specifying th
ꢅ
N
irr
dis
Mth
inputhe same format as they are written on
paps input the same way as MathO, but calculation results
are dsplayed in linear format.
Linear Display (LineIO) causes fractions and
other expressions to be displayed in a single
line.
Note: • The calculator switches to Linear Display automatically whenever
you enter the STAT Mode. • In this manual, the ꢀ symbol next to a
sample operation indicates Natural Display (MathO), while the 1 symbol
indicates Linear Display.
E-5
C
ꢁDeg ꢇRad ꢃGra Specifies degrees, radians or grads as the angle
unit for value input and calculation result display.
Note: In this manual, the B symbol next to a sample operation indicates
degrees, while the * symbol indicates radians.
ꢄFix ꢈSci ꢉNorm
Specifies the number of digits for display of a
calculation result.
Fix: The value you specify (from 0 to 9) controls the number of decimal
places for displayed calculation results. Calculation results are rounded off
to the specified digit before being displayed.
Example: 1 100 ÷ 7 = 14.286 (Fix 3)
14.29 (Fix 2)
Sci: The value you specify (from 1 ant
digits for displayed f to
the
)
l
f
f
S
de
Nole
rese separator is a
sem
fx-8LUS: Aꢃ;CONTꢀ
fx-95ES PLUS: Aꢄ;CONTꢀ
Adjusts display contrast. See “Adjusting Display Contrast” for details.
Initializing Calculator Settings
Perform the following procedure to initialize the calculator, which returns the
calculation mode to COMP and returns all other settings, including setup
menu settings, to their initial defaults.
ꢁꢀ(CLR)ꢅ(Setup)ꢂ(Yes)
E-6
Inputting Expressions and Values
Basic Input Rules
Calculations can be input in the same form as they are written. When you
press ꢂ the priority sequence of the input calculation will be evaluated
automatically and the result will appear on the display.
4 s sin30 s (30 + 10 s 3) = 120
ꢀꢁꢂꢃ
4
Q30ꢊ
ꢋ30ꢌ10
3ꢊꢂ
1
*
2
3
*
*
*1 Input of the closing pareons
that incl
ol
s,
s,
y
t
c
E
re
10
inp
Caence
The ce of input calculations is evaluated in accordance with the
rules below. When the priority of two expressions is the same, the calculation
is performed from left to right.
1st
Parenthetical expressions
Functions that require an argument to the right and a closing
parenthesis “)” following the argument.
2nd
Functions that come after the input value (x , x , x , x!, °’ ”, °, r, g,
2
3
–1
3rd
4th
%), powers (x9), roots (ꢀ)
Fractions
E-7
Negative sign (–)
Note: When squaring a negative value (such as –2), the value
being squared must be enclosed in parentheses (ꢋꢀ2ꢊ7;
2
ꢂ). Since x has a higher priority than the negative sign,
5th
inputting ꢀ27ꢂ would result in the squaring of 2 and then
appending a negative sign to the result. Always keep the priority
sequence in mind, and enclose negative values in parentheses
when required.
6th
7th
8th
9th
STAT Mode estimated values (K, L, K1, K2)
Multiplication where the multiplication sign is omitted
Permutation (nPr), combination (nCr)
Multiplication, divi
10t
d
D
th
sc
U
(N
A vou have already input can be used as the
7
argufunction. After you have input
7
, for example, you can make
6
it the argument of ꢍ, resulting in
.
'
6
7
7
To input 1 +
and then change it to 1 +
ꢀ
'
6
6
ꢀꢁꢂꢃ
1ꢌ7ꢃ6
ꢀꢁꢂꢃ
BBBBꢁ)(INS)
E-8
ꢀꢁꢂꢃ
As shown above, the value or expression to the right of the cursor after
ꢁ)(INS) are pressed becomes the argument of the function that is
specified next. The range encompassed as the argument is everything up
to the first open parenthesis to the right, if there is one, or everything up to
the first function to the right (sin(30), log2(4), etc.)
This capability can be used with the following functions: ꢃ, ꢄ, ꢁ;
ꢅ(ꢀ), ꢁ:(ꢆ), ꢁ7(ꢇ),
, ꢅ, ꢁ
(ꢂ), ꢄ.
Overwrite Input Mode (Linear Display only)
You can select either insert or overwrite hile
Linear Display is selectedthe
text at the nd
or
y
o
5.913591358
f
'
'
6 + 2 3
f
WhilLinear Display is selected, each press of 5 will toggle the currently
displayed calculation result between its decimal form and fraction form.
1
5
1 ÷ 5 = 0.2 =
1
1ꢎ5ꢂ
0.2
1Y5
f
f
4
5
1
5
1 –
=
= 0.2
1
1ꢏ4ꢃ5ꢂ
1Y5
0.2
E-9
C
Important: • Depending on the type of calculation result that is on the display
when you press the 5 key, the conversion process may take some time to
perform. • With certain calculation results, pressing the 5 key will not convert
the displayed value. • You cannot switch from decimal form to mixed fraction
form if the total number of digits used in the mixed fraction (including integer,
numerator, denominator, and separator symbols) is greater than 10.
Note: With Natural Display (MathO), pressing ꢁꢂ instead of ꢂ after
inputting a calculation will display the calculation result in decimal form.
Pressing 5 after that will switch to the fraction form or P form of the
calculation result. The ꢍ form of the result will not appear in this case.
Basic Calculations
Fraction Calcul
er
7
P
In
a
rcentage of 880 is 660. (75%)
660ꢄ880ꢁꢃ(%)ꢁ
ꢃ(%)ꢁ
30
75
Increase 2500 by 15%. (2875)
2500ꢀ2500
15ꢁꢃ(%)ꢁ
2875
2625
Discount 3500 by 25%. (2625)
3500ꢂ3500
25ꢁꢃ(%)ꢁ
E-10
C
Degree, Minute, Second (Sexagesimal) Calculations
Performing an addition or subtraction operation between sexagesimal values,
or a multiplication or division operation between a sexagesimal value and a
decimal value will cause the result to be displayed as a sexagesimal value.
You also can convert between sexagesimal and decimal. The following
is the input format for a sexagesimal value: {degrees} ꢀ {minutes} ꢀ
{seconds} ꢀ.
Note: You must always input something for the degrees and minutes, even
if they are zero.
2°20´30˝ + 39´30˝ = 3°00´00˝
2ꢀ20ꢀ30ꢀꢀ
´0˝
Convert
8˝
5
˝
123
ꢁ'(k)
ꢁ'(k) 0.000123×106
0.123×103
Calculation History
In the COMP Mode, the calculator remembers up to approximately 200 bytes
of data for the newest calculation. You can scroll through calculation history
contents using D and A.
1 + 1 = 2
2 + 2 = 4
3 + 3 = 6
1ꢀ1ꢁ
2ꢀ2ꢁ
3ꢀ3ꢁ
2
4
6
E-11
(Scrolls back.) D
4
2
(Scrolls back again.) D
Note: Calculation history data is all cleared whenever you press ꢀ, when
you change to a different calculation mode, when you change the display
format, or whenever you perform any reset operation.
Replay
While a calculation result is on the display, you can press B or C to edit
the expression you used for the previous calculation.
4 × 3 + 2.5 = 14.5 1
4
4.5
4 × 3 − 7.1 = 4.9 (Continuin
4.9
Note: If yoght
ꢂ
.
V
Yo
caons.
riable A
3ꢀ5ꢁB(STO)E(A)
8
To multiply the contents of variable A by 10
(Continuing) #E(A)
10ꢁ
80
8
To recall the contents of variable A (Continuing) BE(A)
To clear the contents of variable A
0ꢁB(STO)E(A)
0
E-12
Independent Memory (M)
You can add calculation results to or subtract results from independent
memory. The “M” appears on the display when there is any value other than
zero stored in independent memory.
To clear the contents of M
0ꢁB(STO)J(M)
(Continuing) 10 5J
0
To add the result of 10 s 5 to M
50
To subtract the result of 10 + 5 from M
(Continuing) 10ꢌ5ꢁJ(M–)
15
35
To recall the contents of M
Note: Variable
n
.
f
Anresult
dis
• Pr
• Prollowing keys: ꢁ or 4.
• Usithe setup menu to change the angle unit setting (Deg, Rad, Gra) or
the display digits setting (Fix, Sci, Norm).
Note: • You will not be able to execute prime factorization while a decimal
value, fraction, or negative value calculation result is displayed. Trying to
do so will cause a math error (Math ERROR). • You will not be able to
execute prime factorization while the result of a calculation that uses Pol,
Rec is displayed.
E-13
C
Function Calculations
For actual operations using each function, see the “Examples” section
following the list below.
ꢀ
: P is displayed as 3.141592654, but P = 3.14159265358980 is used for
internal calculations.
e: e is displayed as 2.718281828, but e = 2.71828182845904 is used for
internal calculations.
sin, cos, tan, sin−1, cos−1, tan−1: Trigonometric functions. Specify the angle
unit before performing calculations. See 1.
sinh, cosh, tanh, sinh−1, cosh−1, tanh−1: ut a
function from the menu that unit
setting does n
s,
m
t
P
X and Y.
tion result Q is displayed
in the range of −180° ꢁ Q ꢂ
180°.
Rect
Coor)
Coordinates (Pol)
x!: Factorial function. See
.
9
Abs: Absolute value function. Note that the input method is different
depending upon whether you are using Natural Display or Linear Display.
See
Ran#: Generates a 3-digit pseudo random number that is less than 1. The
result is displayed as a fraction when Natural Display is selected. See
.
10
.
11
RanInt#: For input of the function of the form RanInt#(a, b), which generates
a random integer within the range of a to b. See
.
12
E-14
C
nPr, nCr: Permutation (nPr) and combination (nCr) functions. See
.
13
Rnd:Theargumentofthisfunctionismadeadecimalvalueandthenrounded
in accordance with the current number of display digits setting (Norm, Fix, or
Sci). With Norm 1 or Norm 2, the argument is rounded off to 10 digits. With
Fix and Sci, the argument is rounded off to the specified digit. When Fix 3
is the display digits setting, for example, the result of 10 ÷ 3 is displayed
as 3.333, while the calculator maintains a value of 3.33333333333333 (15
digits) internally for calculation. In the case of Rnd(10÷3) = 3.333 (with Fix
3), both the displayed value and the calculator’s internal value become
3.333. Because of this a series of calculations will produce different results
depending on whether Rnd is used (Rnd(10÷3) s 3 = 9.999) o(10
÷ 3 s 3 = 10.000). See
.
14
Note: Using functions calay
of the resuhe
its
4
ree significant digits (Sci 3)
6
ꢁ(Sci)ꢁ
790ꢅꢁ
4.50×100
1.2 s 103 = 1200 ꢀ
1.2
10ꢅ3ꢁ
1200
16
15625
7
(1+1)2+2 = 16
ꢀ ꢃ1ꢀ1ꢅꢅ2ꢀ2ꢁ
(52)3 = 15625
ꢃ5Vꢅ ꢁ
5
= 2
ꢀ
1
ꢁꢅ(ꢀ) 5C32ꢂ
2
2
32
5ꢁꢅ(ꢀ)32ꢅꢁ
E-15
To calculate
places (Fix 3)
(= 3
= 4.242640687...) to three decimal
'
2
'
2 3
×
ꢁꢃ(SETUP)ꢄ(Fix)ꢁ ꢀ
2C
3ꢂ
ꢁꢂ
3ꢂ
'
4.243
4.243
3
2
1
2ꢅ
To convert rectangular coordinates (
,
) to polar coordinates
8
' '
2
2
B
ꢀ
1
ꢁꢌ(Pol)
2Cꢁꢅ(,)
2ꢅꢁꢅ(,)
2Cꢅꢂ r=2,θ=45
ꢁꢌ(Pol)
2
2
45
To conve
1
0
ꢁ
5040
210
10ꢁꢄ(nCr)4ꢁ
To perform the following calculations when Fix 3 is selected for the
14
number of display digits: 10 ÷ 3 s 3 and Rnd(10 ÷ 3) s 3 1
ꢁꢃ(SETUP)ꢄ(Fix)ꢁ
10ꢎ3
3ꢂ
10.000
9.999
ꢁꢑ(Rnd)10ꢎ3ꢊ
3ꢂ
E-16
Statistical Calculations (STAT)
To start a statistical calculation, perform the key operation ꢃꢆ(STAT)
to enter the STAT Mode and then use the screen that appears to select the
type of calculation you want to perform.
To select this type of statistical calculation:
Press this key:
(Regression formula shown in parentheses)
Single-variable (X)
ꢅ(1-VAR)
ꢆ(A+BX)
Paired-variable (X, Y), linear regression (y = A + Bx)
Paired-variable (X, Y), quadratic regression
(y = A + x
Paired-variable (X, Y
i
o
STAT
(STAT)ꢆ(A+BX)
STAT
170ꢂ173ꢂ179ꢂAC
STAT
66ꢂ68ꢂ75ꢂ
E-17
Important: • All data currently input in the Stat Editor is deleted whenever
you exit the STAT Mode, switch between the single-variable and a paired-
variable statistical calculation type, or change the Stat Format setting on the
setup menu. • The following operations are not supported by the Stat Editor:
;, ꢁ;(M–), ꢁB(STO). Pol, Rec, and multi-statements also cannot
be input with the Stat Editor.
To change the data in a cell: In the Stat Editor, move the cursor to the cell
that contains the data you want to change, input the new data, and then
press ꢂ.
To delete a line: In the Stat Editor, move the cursor to the line that you want
to delete and then press ).
To insert a line: In the Stat Editor, move the cursor here
you want to insert the line and then ion:
ꢁꢅ(STAT)ꢁ(Edit)
To deletng
n
R
V
ꢁ
• Sgression
fo
• K, ey are commands of the type that take
an iately before them. See “Calculating Estimated Values”
for ore information.
To input the single-variable data x = {1, 2, 2, 3, 3, 3, 4, 4, 5}, using
2
the FREQ column to specify the number of repeats for each items
({xn; freqn} = {1;1, 2;2, 3;3, 4;2, 5;1}), and calculate the mean and
population standard deviation.
fx-82/85/350ES PLUS: ꢁꢃ(SETUP)Aꢁ(STAT)ꢅ(ON)
fx-95ES PLUS: ꢁꢃ(SETUP)Aꢇ(STAT)ꢅ(ON)
E-18
C
STAT
ꢃꢆ(STAT)ꢅ(1-VAR)
1ꢂ2ꢂ3ꢂ4ꢂ5ꢂAC
1ꢂ2ꢂ3ꢂ2ꢂ
ꢂꢁꢅ(STAT)ꢇ(Var)ꢆ(M)ꢂ
ꢂꢁꢅ(STAT)ꢇ(Var)ꢁ(Sx)ꢂ
Results: Mean: 3 Population Standard Deviation: 1.154700538
To calculate the linear regression and logarithmic regression
3
correlation coefficients for the following paired-
determine the regression form,
y) = (20, 3150)x
C
B
ca
Thratic
regy in the regression
form
termine the estimate value for y when x = 160 in the
4
regression formula produced by logarithmic regression of the data
in
after completing the operations in
ꢂ160ꢁꢅ(STAT)ꢃ(Reg)ꢃ(L)ꢂ
. Specify Fix 3 for the result. (Perform the following operation
3
.)
3
Result: 8106.898
Important: Regression coefficient, correlation coefficient, and estimated
value calculations can take considerable time when there are a large number
of data items.
E-19
C
Equation Calculations (EQN)
(fx-95ES PLUS only)
You can use the following procedure in the EQN Mode to solve simultaneous
linear equations with two or three unknowns, quadratic equations, and cubic
equations.
1. Press ꢃꢁ(EQN) to enter the EQN Mode.
2. On the menu that appears, select an equation type.
To select this calculation type:
Press this key:
Simultaneous linear equations with two
unknowns
ꢅ(a
Simultaneous linear
three
li
c
C
Premenu that
appe values of all Coefficient
Editro.
EQMode Calculation Examples
x + 2y = 3, 2x + 3y = 4
Math
ꢃꢁ(EQN)ꢅ(anX + bnY = cn
)
1ꢂ2ꢂ3ꢂ
2ꢂ3ꢂ4ꢂ
ꢂ
(X=) –1
(Y=) 2
A
E-20
x – y + z = 2, x + y – z = 0, –x + y + z = 4
ꢃꢁ(EQN)ꢆ(anX + bnY + cnZ = dn
)
Math
1ꢂꢀ1ꢂ1ꢂ2ꢂ
1ꢂ1ꢂꢀ1ꢂ0ꢂ
ꢀ1ꢂ1ꢂ1ꢂ 4 ꢂ
ꢂ
A
A
(X=) 1
(Y=) 2
(Z) 3
3
4
2
x + x +
= 0
ꢀ
ꢃꢁ(E
2
'
i
i
f
P
1.
2. I
• (X)) when generating a number
er than X is handled as a constant.
• Rec cannot be input in the function.
3. In response to the prompts that appear, input the values you want to use,
pressing ꢂ after each one.
For this prompt: Input this:
Start?
End?
Input the lower limit of X (Default = 1).
Input the upper limit of X (Default = 5).
Note: Make sure that the End value is always
greater than the Start value.
E-21
Input the increment step (Default = 1).
Step?
Note: The Step specifies by how much the Start
value should be sequentially incremented as the
number table is generated. If you specify Start = 1
and Step = 1, X sequentially will be assigned the
values 1, 2, 3, 4, and so on to generate the number
table until the End value is reached.
• Inputting the Step value and pressing ꢂ generates and displays the
number table in accordance with the parameters you specified.
• Pressing ꢂ while the number table screen is displayed will return to
the function input screen in step 2.
To generate a number tab
range –1 x
Y
in
1.
2.
Quality
ress this key:
ꢅ(aX2 + bX + c )
ꢆ(aX3 + bX2 + cX + d )
Cubic inequality
3. On the menu that appears, use keys ꢅ through ꢇ to select the inequality
symbol type and orientation.
4. Use the Coefficient Editor that appears to input coefficient values.
2
• To solve x + 2x – 3 < 0, for example, input the coefficients a = 1, b = 2,
c = –3 by pressing 1ꢂ2ꢂꢀ3ꢂ.
• To change a coefficient value you already have input, move the cursor
to the appropriate cell, input the new value, and then press ꢂ.
• Pressing ꢂ will clear all of the coefficients to zero.
E-22
Note: The following operations are not supported by the Coefficient
Editor: ;, ꢁ;(M–), ꢁB(STO). Pol, Rec, and multi-statements
also cannot be input with the Coefficient Editor.
5. After all the values are the way you want, press ꢂ.
• This will display the solutions.
• To return to the Coefficient Editor while the solutions are displayed, press
ꢂ.
Note: Values cannot be converted to engineering notation on the solution
screen.
Changing the Inequality Type
Press ꢃꢃ(INEQ) and then select an inequality tythat
appears. Changing the inequality typient
Editor coefficients to c
Note: Solutions are displayed as shown
here when Linear Display is selected.
3
2
2x − 3x > 0
ꢀ
Math
ꢃꢃ(INEQ)ꢆ(aX3 + bX2 + cX + d)
ꢁ(aX3 + bX2 + cX + d > 0)
2ꢂꢀ3ꢂ
E-23
Math
ꢂ
3
2
3x + 3x – x ꢀ 0
ꢀ
Math
Mh
ꢃꢃ(INEQ)ꢆ(aX3 + bX2 + cX + d)
ꢅ(aX3 + bX2 + cX + d ꢀ 0)
3ꢂ3ꢂꢀ1ꢂ
ꢂ
Th
a : d are known. The
follosing RATIO.
1. P) to enter the RATIO Mode.
2. On menu that appears, select the ꢅ(a:b=X:d) or ꢆ(a:b=c:X).
3. On the Coefficient Editor screen that appears, input up to 10 digits for each
of the required values (a, b, c, d).
• To solve 3 : 8 = X : 12 for X, for example, press ꢅ in step 1, and
then input the following for the coefficients (a = 3, b = 8, d = 12):
3ꢂ8ꢂ12ꢂ.
• To change a coefficient value you already have input, move the cursor
to the appropriate cell, input the new value, and then press ꢂ.
• Pressing ꢂ will clear all of the coefficients to zero.
E-24
Note: The following operations are not supported by the Coefficient
Editor: ;, ꢁ;(M–), ꢁB(STO). Pol, Rec, and multi-statements
also cannot be input with the Coefficient Editor.
4. After all the values are the way you want, press ꢂ.
• This displays the solution (value of X). Pressing ꢂ again will return to
the Coefficient Editor.
Important: A Math ERROR will occur if you perform a calculation while 0
is input for a coefficient.
Changing the Ratio Expression Type
Re-enter the RATIO Mode and select the ratio expression type want
from the menu that appears. Changing the ratio exthe
values of all Coefficient Editor coe
RATIO M
Cnges, Number of Digits,
ad Precision
The calculation range, number of digits used for internal calculation, and
calculation precision depend on the type of calculation you are performing.
Calculation Range and Precision
Calculation Range
p1 s 10–99 to p9.999999999 s 1099 or 0
Number of Digits for Internal
Calculation
15 digits
E-25
B
In general, p1 at the 10th digit for a single
calculation. Precision for exponential
display is p1 at the least significant digit.
Errors are cumulative in the case of
consecutive calculations.
Precision
Function Calculation Input Ranges and Precision
Functions
Input Range
0 ꢂ \x\ ꢁ 9 s 109
DEG
RAD
GRA
DEG
0 ꢂ \x\ ꢁ 157079632.7
sinx
0 ꢂ \x\ ꢁ 1 s 1010
0 ꢂ \x\
cx
(x is an integer)
0 ꢂ n ꢁ 1 s 1010, 0 ꢂ r ꢂ n (n, r are integers)
nPr
1 ꢂ {n!/(n–r)!} ꢁ 1 s 10100
0 ꢂ n ꢁ 1 s 1010, 0 ꢂ r ꢂ n (n, r are integers)
nCr
1 ꢂ n!/r! ꢁ 1 s 10100 or 1 ꢂ n!/(n–r)! ꢁ 1 s 10100
\x\, \y\ ꢂ 9.999999999 s 1099
Pol(x, y)
Rec(r, θ)
ꢂ 9.999999999 s 1099
2
2
+
x y
0 ꢂ r ꢂ 9.999999999 s 1099
θ: Same as sinx
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B
\a\, b, c ꢁ 1 s 10100; 0 ꢂ b, c
°’ ”
The display seconds value is subject to an error of 1 at
the second decimal place.
\x\ ꢁ 1 s 10100
Decimal j Sexagesimal Conversions
0°0´0˝ ꢂ \x\ ꢂ 9999999°59´59˝
x ꢀ 0: –1 s 10100 ꢁ ylogx ꢁ 100
x = 0: y ꢀ 0
xy
m
x ꢁ 0: y = n,
(m, n are integers)
2 +1
n
However: –1 s 10100 ꢁ ylog \x\ ꢁ 100
y ꢀ 0: x & 0, –1 s 1
y = x
x
'y
a
d
ꢂ
Di
Whr C to return to the
calcbe positioned at the location where
the dy for input. Make the necessary corrections to the
calcuion and execute it again.
When you input 14 ÷ 0 s 2 = by mistake instead of 14 ÷10 s 2 =
ꢀ
Math
14ꢎ0
2ꢂ
Math
C (or B)
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B
Math
B1ꢂ
Clearing the Error Message
While an error message is displayed, press ꢂ to return to the calculation
screen. Note that this also clears the calculation that contained the error.
Error Messages
Math ERROR
Cause: • The intermediate or final result oing
exceeds the allowable calble
input rangare
on
y
a
A
C
(R
Ac
Bng Malfunction of the
Cculator...
Perform the following steps whenever an error occurs during a calculation
or when calculation results are not what you expected. If one step does not
correct the problem, move on to the next step.
Note that you should make separate copies of important data before
performing these steps.
1. Check the calculation expression to make sure that it does not contain any
errors.
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C
2. Make sure that you are using the correct mode for the type of calculation
you are trying to perform.
3. If the above steps do not correct your problem, press the ꢀ key. This will
cause the calculator to perform a routine that checks whether calculation
functions are operating correctly. If the calculator discovers any abnormality,
it automatically initializes the calculation mode and clears memory contents.
For details about initialized settings, see “Configuring the Calculator
Setup”.
4. Initialize all modes and settings by performing the following operation:
ꢁꢀ(CLR)ꢅ(Setup)ꢂ(Yes).
Replacing the Battery
A low battery is indicby
failurhe
y
3. R
4. InR)ꢁ(All)ꢂ(Yes)
• ve step!
Specifications
Power Requirements:
fx-82/95ES PLUS: AAA-size battery R03 (UM-4) s 1
fx-350ES PLUS: AAA-size battery LR03 (AM4) s 1
fx-85ES PLUS: Built-in solar cell; button battery LR44 (GPA76) s 1
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C
Approximate Battery Life:
fx-82/95ES PLUS: 17,000 hours (continuous display of flashing cursor)
fx-350ES PLUS: 8,700 hours (continuous operation)
fx-85ES PLUS: 3 years (based on one hour of operation per day)
Power Consumption: 0.0002 W (fx-82/95/350ES PLUS)
Operating Temperature: 0°C to 40°C (32°F to 104°F)
Dimensions:
fx-82/95/350ES PLUS: 13.8 (H) s 80 (W) s 162 (D) mm
1
/
2ꢀ (H) s 31/8ꢀ (W) s 63/8ꢀ (D)
fx-85ES PLUS: 11.1 (H) s 80 (W) s 162 (D) mm
3
/
8ꢀ (H) s 31/8ꢀ (W) s 63/8ꢀ (D)
Approximate Weight:
fx-82/95/350ES PLUS
fx-85E
a
I
I tion result
tO calculator models?
Wmodel, the argument of a function that
us must be followed by a closing parenthesis. Failing to
press ꢊ after the argument to close the parentheses may cause unwanted
values or expressions to be included as part of the argument.
Example: (sin 30) + 15 B
Older (S-VPAM) Model:
Q30ꢌ15ꢂ 15.5
Natural Textbook Display Model: 1 Q30ꢊꢌ15ꢂ 15.5
Failure to press ꢊ here as shown below will result in calculation of sin 45.
Q30ꢌ15ꢂ 0.7071067812
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C
n:
tz 1
22848 Norderstedt, Germany
This mark applies in EU countries only.
SA0904-C
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