fx-115WA fx-991WA

Users Guide

Removing and Replacing the Calculators Cover

To Remove the cover

Grasp the top of the cover, and slide the unit out from the bottom.

To Replace the cover

Grasp the top of the cover, and slide the unit in from the bottom. Always slide the unit into the cover with the units display end first. Never slide the keyboard end of the unit into the cover.
CASIO ELECTRONICS CO., LTD. Unit 6, 1000 North Circular Road, London NW2 7JD, U.K.

Safety Precautions

Be sure to read the following safety precautions before using this calculator. Keep this manual handy for later reference.

Caution

This symbol is used to indicate information that can result in personal injury or material damage if ignored.

Batteries

After removing the batteries from the calculator, put
them in a safe place where there is no danger of them getting into the hands of small children and accidently swallowed. Keep batteries out of the reach of small children. If accidently swallowed, consult with a physician immediately. Never charge batteries, try to take batteries apart, or allow batteries to become shorted. Never expose batteries to direct heat or dispose of them by incineration. Misuse of batteries can cause them to leak acid that can cause damage to nearby items and creates the possibility of fire and personal injury. Always make sure that a batterys positive k and negative l sides are facing correctly when you load it into the calculator. Remove the batteries if you do not plan to use the calculator for a long time. Use only the type of batteries specified for this calculator in this manual.
Disposing of the Calculator
Never dispose of the calculator by burning it. Doing
so can cause certain components to suddenly burst, creating the danger of fire and personal injury.
The displays and illustrations (such as key markings)
shown in this Users 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 these materials. Moreover, CASIO Computer Co., Ltd. shall not be liable for any claim of any kind whatsoever against the use of these materials by any other party.

Handling Precautions

Be sure to press the
key before using the calculator for the first time. Even if the calculator is operating normally, replace the battery at least once every three years. Dead battery can leak, causing damage to and malfunction of the calculator. Never leave the dead battery in the calculator. The battery that comes with this unit discharges slightly during shipment and storage. Because of this, it may require replacement sooner than the normal expected battery life. Low battery power can cause memory contents to become corrupted or lost completely. Always keep written records of all important data. Avoid use and storage in areas subjected to temperature extremes. Very low temperatures can cause slow display response, total failure of the display, and shortening of battery life. Also avoid leaving the calculator in direct sunlight, near a window, near a heater or anywhere else it might become exposed to very high temperatures. Heat can cause discoloration or deformation of the calculators case, and damage to internal circuitry. 2

Avoid use and storage in areas subjected to large
amounts of humidity and dust. Take care never to leave the calculator where it might be splashed by water or exposed to large amounts of humidity or dust. Such elements can damage internal circuitry. Never drop the calculator or otherwise subject it to strong impact. Never twist or bend the calculator. Avoid carrying the calculator in the pocket of your trousers or other tight-fitting clothing where it might be subjected to twisting or bending. Never try to take the calculator apart. Never press the keys of the calculator with a ball-point pen or other pointed object. Use a soft, dry cloth to clean the exterior of the unit. If the calculator becomes very dirty, wipe it off with a cloth moistened in a weak solution of water and a mild neutral household detergent. Wring out all excess moisture before wiping the calculator. Never use thinner, benzine or other volatile agents to clean the calculator. Doing so can remove printed markings and damage the case.

Contents

Safety Precautions.. 1 Handling Precautions.. 2 Two-line Display.. 5 Key Layout... 6 Before Starting Calculations. 7
kModes... kInput Capacity... kMaking Corrections During Input.. kReplay Function... kError Locator... kExponential Display Formats.. kAnswer Memory... 9
Basic Calculations... 10 Memory Calculations.. 10
kIndependent Memory.. 10 kVariables.. 10
Fraction Calculations. 11
kFraction Calculations.. 11 kDecimal-to-Fraction Conversion.. 11 kFraction-to-Decimal Conversion.. 11
Percentage Calculations. 12 Scientific Function Calculations. 13
kTrigonometric/Inverse Trigonometric Functions. 13 kHyperbolic/Inverse Hyperbolic Functions. 13 kAngle Unit Conversion... 14 kCommon and Natural Logarithms/ Antilogarithms.. 14 kSquare Roots, Cube Roots, Roots, Squares, Cubes, Reciprocals, Factorials, Random Numbers and .. 14 kFIX, SCI, RND... 15 kENG Calculations.. 16 kInputting ENG Calculation Symbols. 16 kCoordinate Conversion (Pol(x, y), Rec (r, )). 17 kPermutation.. 18 kCombination.. 18 4
Statistical Calculations.. 18

kStandard Deviation (SD Mode).. 18 kProbability Distribution Calculations. 19 kRegression Calculations (REG Mode).. 20
Complex Number Calculations (CMPLX Mode).. 22
kAbsolute Value/Argument Calculation.. 23
Metric Conversions ( fx-991WA ). 23 Scientific Constants ( fx-991WA ). 25 Base-n Calculations.. 26 Degrees, Minutes, Seconds Calculations. 28 Technical Information. 28
kWhen you have a problem.. kError Messages... kOrder of Operations.. kStacks... kPower Supply.. kInput Ranges.. 31 33

Specifications.. 35

Two-line Display
You can simultaneously check the calculation formula and its answer.
The first line displays the calculation formula. The second line displays the answer.

Key Layout Key Layout

< fx-991WA > Page

REPLAY

MODE ON/CLEAR

x! LOGIC

Page 15 Page Page Page Page Page 16 10

10 BIN

sin-1 D

cos-1 E

tan-1 F

Re<->lm

Page Page

McI ScI

fx-115WA: 18 6
Before Starting Calculations.

k Modes

Application Calculation Modes Normal calculations Complex number calculations Standard deviation calculations Regression calculations Base-n calculations COMP CMPLX SD CMPLX SD Mode Name Mode Indicator
REG REG BASE-N b (binary) o (octal) d (decimal) H (hexadecimal) DEG RAD GRA
Angle Unit Modes Degrees Radians Grads Display Modes Exponential notation (Canceling FIX and SCI specification) Number of decimal place specification Number of significant digit specification Exponential display range specifications

Fix Sci ENG

NORM1 NORM2 FIX SCI ENG
Mode indicators appear in the lower part of the display, except for the Base- n indicators which appear in the exponent part of the display. The ENG mode cannot be selected while the calculator is in the CMPLX or BASE-N mode. 7
You cannot set the angle unit or the display mode while the calculator is in the BASE-N mode. The COMP, CMPLX, SD, and REG modes can be used in combination with the angle unit modes. Be sure to check the current calculation mode (SD, REG, COMP, CMPLX) and angle unit mode (DEG, RAD, GRA) before beginning a calculation.

k Input Capacity

The memory area used for calculation input can hold 79 steps. Whenever you input the 73rd step of any calculation, the cursor changes from _ to k to let you know memory is running low. If you still need to input more, you should divide your calculation into two or more parts.

k Making Corrections During Input
Use e and r to move the cursor to the location you want. Press [ to delete the number or function at the current cursor position. Press A K to change to an insert cursor t. Inputting something while the insert cursor is on the display inserts the input at the insert cursor position. Press e, r, A K, or = returns to the normal cursor from the insert cursor.

k Replay Function

Pressing r or e recalls the last calculation you performed. You can then make any changes you want in the calculation and re-execute it. Pressing t does not clear Replay memory, so you can recall the last calculation even after you press t. Replay memory is cleared whenever you start a new calculation, change to another mode, or turn off power.

k Error Locator

Pressing r or e after an error occurs displays the calculation with the cursor positioned at the location where the error occurred.
k Exponential Display Formats
This calculator can display up to 10 digits. Larger values are automatically displayed using exponential notation. In the case of decimal values, you can select between two formats that determine at what point exponential notation is used. Press F F F F (or 2) to select NORM 1 or NORM 2.

NORM 1

With NORM 1, exponential notation is automatically used for integer values with more than 10 digits and decimal values with more than two decimal places.

NORM 2

With NORM 2, exponential notation is automatically used for integer values with more than 10 digits and decimal values with more than nine decimal places. All of the examples in this manual show calculation results using the NORM 1 format.

k Answer Memory

Whenever you press = after inputting values or an expression, the calculated result is automatically stored in Answer Memory. You can recall Answer Memory contents by pressing g. Answer Memory can store up to 12 digits for the mantissa and two digits for the exponent. Answer Memory contents are not changed if the operation performed by any of the above key operations results in an error.

WA V RL2\2T= g\Ax=

Example 4 : tan1 0.741

0.78539816300

0.2500

q q q 1 R A g 0.741 =

36.5384457700
k Hyperbolic/Inverse Hyperbolic Functions

Example 1 : sinh 3.6

M S 3.6 =

Example 2 : sinh1 30

18.2854553600

M A j 30 =

4.09462222400

k Angle Unit Conversion

Press A v to display the following menu.
Pressing 1 , 2, or 3 converts the displayed value to the corresponding angle unit. Example : To convert 4.25 radians to degrees
FFF1 R 4. 25 r 4.25 A v 2 (R) = 243.5070629
k Common and Natural Logarithms/ Antilogarithms

Example 1 : log 1.23

R 1.23 =

0.08990511100

Example 2 : In 90 (loge 90)

T 90 =

Example 3 : e10 Example 4 : 101.5 Example 5 : 24
4.4998096700 22026.4657900 31.622776600 16.00

A U 10 = A Q 1.5 =

k Square Roots, Cube Roots, Roots, Squares, Cubes, Reciprocals, Factorials, Random Numbers and

Example 1: 5

L2+L3-L5=

Example 2:

5.28719690900
D 5 + D D 27 = 1.29002405300
Example 3: ( = ) 7 A H 123 = Example 4: 123 + 30 K = Example 5: Example 6: N =

1.98864779500

1023.00 1728.00

R 3a, 4aT a=

Example 7: 8! 8Af=

12.00 40320.00

Example 8: To generate a random number between 0.000 and 0.999

Example 9: 3 3Ax=

0.66400 9.42477796100
Example (results differ each time)

k FIX, SCI, RND

Example 1: \ 7 - 14 =
(Specifies three decimal places.)

400.00 400.00000

FFFF13

200 \ 7 =

(Calculation continues using 10 display digits)

28.57100 400.00000

- 14 =
Performing the same calculation using the specified number of decimal places 200 \ 7 =

(Internal rounding)

28.57100 28.57100

399.99400

Press F F F F to clear FIX specification. Example 2: 1 3, displaying result with two significant digits (SCI 2)

FFFF\3 =

Press F F F F to clear SCI specification.

k ENG Calculations

Example 1: To convert 56,088 meters to kilometers 56088 = J

56.088003

Example 2: To convert 0.08125 grams to milligrams 0.08125 = J

81.2503

k Inputting ENG Calculation Symbols
F F F F F 1 enters the ENG mode in which ENG symbols can be used in calculations. To exit the ENG mode, press F F F F F 2. The following are the nine ENG symbols that can be used in ENG mode calculations. Key Operation
Ak AM Ag At Am AN An Ap Af

Unit 1015 16

Symbol k (kilo) M (Mega) G (Giga) T (Tera) m (milli) (micro) n (nano) p (pico) f (femto)
* For displayed values, the calculator selects the ENG symbol that makes the numeric part of the value fall within the range of 1 to 1000. * ENG symbols cannot be used when inputting fractions. * The ENG mode cannot be used in combination with the CMPLX, or BASE-N modes. Performing any of the key operations in the above table while you are not in the ENG mode inputs the exponential value in the Unit column (without inputting the ENG symbol). Example: 910 = 0.9 m (milli)

FFFFF1

9 \ 10 =
In the ENG mode, even standard (non-ENG) calculation results are displayed using ENG symbols.
k Coordinate Conversion (Pol(x, y), Rec (r, ))
Calculation results are automatically assigned to variables E and F. Example 1: To convert polar coordinates (r2, 60) to rectangular coordinates (x, y) (DEG mode) x y

A F 2 P 60 T = 0o

1.73205080800
0 n, 0 o swaps displayed value with value in memory. Example 2: To convert rectangular coordinates (1, 3) to polar coordinates (r, ) (RAD mode) r

f1P L 3T=

0 o 1.04719755100
0 n, 0 o swaps displayed value with value in memory.

k Permutation

Example: To determine how many different 4-digit values can be produced using the numbers 1 through 7 Numbers cannot be duplicated within the same 4-digit value (1234 is allowed, but 1123 is not). 7Am4=

k Combination

Example: To determine how many different 4-member groups can be organized in a group of 10 individuals fx-115WA. 10 n 4 = fx-991WA.. 10 A n 4 =

Statistical Calculations

k Standard Deviation (SD Mode)
Press F F 1 to enter the SD Mode for statistical calculations using standard deviation. Data input always starts with A m = to clear statistical memory. Input data is used to calculate values for x2 n, x, x2, o, n and n-1 which you can x recall using the key operations noted 0 k n nearby. AM o

A A n A N n-1

Example: To calculate n1, n, o, n, x, and x 2 for the following data : 55, 54, 51, 55, 53, 53, 54, 52 Enter SD Mode F F 1 A m = (Memory Clear) 55 S 54 S 51 S 55 S 53 S S 54 S 52 S
(Sample Standard Deviation n1 ) (Population Standard Deviation n) (Arithmetic Mean o) (Number of Data n) (Sum of Values x) (Sum of Squares of Values x 2)
A N = 1.40788595300 A A = 1.31695671900 AM = 0k 0H 0G
53.37500 8.00 427.00 22805.00
Data Input Precautions S S inputs the same data twice.
You can also input multiple entries of the same data using A G. To input the data 110 ten times, for example, press 110 A G 10 S. The above results can be obtained in any order, and not necessarily that shown above. To delete data you have just input, press A U.
k Probability Distribution Calculations

Press A D to produce the screen shown below.

P ( Q ( R ( t

Input a value from 1 to 4 to select the probability distribution calculation you want to perform.

P(t) Q(t) R(t)

Example : Using the x-data values input in the example on page 20, determine the normalized variate ( t) for x = 53 and normal probability distribution P(t). 53 A D 4 (t ) = -0.284747398

A D 1 ( P ( ) -0.28 F =

0.38974
k Regression Calculations (REG Mode)
Press F F 2 to enter the REG mode and then select one of the following regression types. 1 : Linear regression 2 : Logarithmic regression 3 : Exponential regression r 1 : Power regression r 2 : Inverse regression r 3 : Quadratic regression Data input always starts with A m = to clear statistical memory. The values produced by a regression calculation depend on the values input, and results can be recalled using the key operations shown in the table below.
0 G x 2 A N 0 H x A l 0k n Ad 0 h y 2 A c 0 n y A q 0 o xy A w 0 M x 3 A e 0 x x2y A J 0 y x 4 A O AM o Ab A A xn Linear Regression

xn-1 p yn yn-1

Regression coefficient A Regression coefficient B Regression coefficient C Correlation coefficient r
The regression formula for linear regression is: y A Bx. 20
Example: Atmospheric Pressure vs. Temperature
Temperature Atmospheric Pressure

10C 15C 20C 25C 30C

1003 hPa 1005 hPa 1010 hPa 1011 hPa 1014 hPa
Perform linear regression to determine the regression formula terms and correlation coefficient for the data nearby. Next, use the regression formula to estimate atmospheric pressure at 18C and temperature at 1000 hPa.
Enter REG Mode (Linear Regression)
qq21 A m = (Memory Clear) 10 P 1003 S 15 P 1005 S 20 P 1010 S 25 P 1011 S 30 P 1014 S
(Regression Coefficient A) (Regression Coefficient B) (Correlation Coefficient r ) (Atmospheric Pressure at 18C) (Temperature at 1000 hPa)

A q= A w= A J=

18 A b 1000 A O
997.400 0.5600 0.98260736800 1007.4800 4.64285714300

Quadratic Regression

The regression formula for quadratic regression is: y = A + Bx +Cx2. Input data using the following key sequence. < x-data> P <y-data> S Example:

1.6 23.5 38.0 46.4 48.0

Perform quadratic regression to determine the regression formula terms and correlation coefficient for the data nearby. Next, use the regression fory mula to estimate the values for (esx timated value of y) for xi = 16 and (estimated value of x) for yi = 20. 21
Enter REG mode (Quadratic regression)
FF2r3 A m= 29 P 1.6 S 50 P 23.5 S 74 P 38.0 S103 P 46.4 S 118 P 48.0 S
(Regression Coefficient A) (Regression Coefficient B) (Regression Coefficient C) ( when x i = 16) y ( 1 when yi = 20) x ( 2 when yi = 20) x

A q = -35.59856934 Aw=

1.495939413

A e = -6.71629667-03

16 A b -13.A O

47.14556728 175.5872105

Data Input Precautions
S S inputs the same data twice. You can also input multiple entries of the same data using A G. To input the data 20 and 30 five times, for example, press 20 P 30 A G 5 S. The above results can be obtained in any order, and not necessarily that shown above. To delete data you have just input, press A U.
Complex Number Calculations (CMPLX Mode)
Press F 2 to enter the CMPLX Mode for calculations that include complex numbers. You can use variables A, B, C and M only. Variables D, E, F, X, and Y are used for storage of the imaginary parts of values and so cannot be used by you.
Example: (2 + 3i) + (4 + 5i ) Enter CMPLX Mode F 2

R2+3iT+ R 4+5iT= Ar

Real number part

Imaginary number part

k Absolute Value/Argument Calculation
The procedure described below can be used to determine the absolute value (Abs) and argument (arg) for a complex number of the format Z = a + bi , which is presumed to exist as coordinates on a Gaussian plane. Example: To obtain the absolute value (r) and argument ( ) for the complex number 3 + 4i , when DEG is set for the angle unit mode

Imaginary number axis

Real number axis
Determine the absolute value.

AAR3+4i T=

Determine the argument.
A a R 3 + 4 i T = 53.13010235
Metric Conversions (fx-991WA)
A total of 20 different conversion pairs are built-in to provide quick and easy conversion to and from metric units. 23
See the Conversion Pair Table shown below for a complete list of available conversion pairs. Example: To convert 31 inches to centimeters 31 A c 01

CONV 1

01 is the inches-to-centimeters conversion pair number.

31 i n

= Conversion Pair Table
Based on ISO Standard (1992) data and CODATA Bulletin 63 (1986) data.
Number Conversion Pair Number Conversion Pair
in cm cm in ft m m ft yd m m yd mile km km mile n mile m m n mile acre m2 m2 acre gal (US) r r r gal (US) gal (UK) r r r gal (UK) pc km km pc km/h m/s m/s km/h 24
oz g g oz lb kg kg lb atm Pa Pa atm mmHg Pa Pa mmHg hp kW kW hp kgf/cm2 Pa Pa kgf/cm2 kgfm J J kgfm lbf/in2 kPa kPa lbf/in2 F C C F J cal cal J
Scientific Constants (fx-991WA)
A total of 40 commonly-used scientific constants, such as the speed of light in a vacuum and Planck's constant are built-in for quick and easy lookup whenever you need them. Simply input the number that corresponds to the scientific constant you want to look up and it appears instantly on the display. See the Scientific Constant Table shown below for a complete list of available constants. Example: To determine how much total energy a person weighing 65kg has (E = mc 2) 65 L 28

CONST28

28 is the speed of light in vacuum constant number.

65 Co 2

= 5.Scientific Constant Table
Number 09 Constant Name proton mass neutron mass electron mass muon mass Bohr radius Planck's constant nuclear magneton Bohr magneton Planck's constant, rationalized (h-bar) Symbol mp mn me m a0 h N B

Number 40

Constant Name fine-structure constant classical electron radius electron Compton wavelength proton gyromagnetic ratio proton Compton wavelength neutron Compton wavelength Rydberg constant atomic mass unit proton magnetic moment electron magnetic moment neutron magnetic moment muon magnetic moment Faraday constant elementary charge Avogadro constant Boltzmann constant molar volume of ideal gas molar gas constant speed of light in vacuum first radiation constant second radiation constant Stefan-Boltzmann constant permittivity of vacuum permeability of vacuum magnetic flux quantum standard acceleration of gravity astronomical unit parsec Celsius temperature Newtonian constant of gravitation standard atmosphere

Symbol

re c p cp cn R u p e n

F e NA k Vm R C0 C1 C2

g AU pc t G atm

Base-n Calculations

In addition to decimal values, calculations can be performed using binary, octal and hexadecimal values. You can specify the default number system to be applied to all input and displayed values, and the number system for individual values you input. 26
You cannot use scientific functions in binary, octal, decimal, and hexadecimal calculations. You cannot input values that include decimal part and an exponent. If you input a value that includes a decimal part, the unit automatically cuts off the decimal part. Negative binary, octal, and hexadecimal values are produced by taking the two's complement. You can use the following logical operators between values in Base-n calculations: and (logical product), or (logical sum), xor (exclusive logical sum), xnor (exclusive logical sum negation), Not (negation), and Neg (minus). The following are the allowable ranges for each of the available number systems. Octal Decimal 2147483648 Hexadecimal Binary

x x x x x x x

2147483647 FFFFFFFF 7FFFFFFF
Example 1: To perform the following calculation and produce a binary result: 101112 + Binary mode

101112 + 110102

0. 0. 110001.
Example 2: To perform the following calculation and produce an octal result: Octal mode

0. 0. 516.

l l l 4 (o) 76548 \ l l l 1 (d)1210 =
Example 3: To perform the following calculation and produce a hexadecimal result: or 11012 Hexadecimal mode F F 3 h 12016 l 2 (or) l l l 3 (b)11012

0. 0. 12d.

Degrees, Minutes, Seconds Calculations
You can perform sexagesimal calculations using degrees (hours), minutes, and seconds, and convert between sexagesimal and decimal values. Example 1: To convert the decimal value 2.258 to a sexagesimal value 2.258 =

2.258 21528.8

123456 3.I 34 I 56 I - 3.45
Example 2: To perform the following calculation:

0. 432431.2

Technical Information
k When you have a problem.
If calculation results are not what you expect or if an error occurs, perform the following steps. 1. F 1 (COMP mode) 2. F F F 1 (DEG mode) 3. F F F F (NORM 1 mode) 4. Check the formula you are working with to confirm it is correct. 28
5. Enter the correct modes to perform the calculation and try again. If the above steps do not correct the problem, press the key. The calculator performs a self-check operation and deletes all data stored in memory if any abnormality is detected. Make sure you always keep written copies of all important data.

k Error Messages

The calculator is locked up while an error message is on the display. Press t to clear the error, or press e or r to display the calculation and correct the problem. See Error Locator on page 9 for details.

Ma ERROR

Cause Calculation result is outside the allowable calculation range. Attempt to perform a function calculation using a value that exceeds the allowable input range. Attempt to perform an illogical operation (division by zero, etc.). Action Check your input values and make sure they are all within the allowable ranges. Pay special attention to values in any memory areas you are using.

Stk ERROR

Cause Capacity of the numeric stack or operator stack is exceeded. Action Simplify the calculation. The numeric stack has 10 levels and the operator stack has 24 levels. Divide your calculation into two or more separate parts.

To replace the battery

1 Remove the six screws that Screw hold the back cover in place and then remove the back cover. 2 Remove the old battery. 3 Wipe off the sides of new battery with a dry, soft cloth. Load it into the unit with the positive k side facing up (so you can see it). 4 Replace the back cover and secure it in place with the six screws. 31

5 Press step.

to turn power on. Be sure not to skip this

Auto Power Off

Calculator power automatically turns off if you do not perform any operation for about six minutes. When this hapto turn power back on. pens, press

k Input Ranges

Internal digits: 12 Accuracy: As a rule, accuracy is 1 at the 10th digit. Functions sinx Input Range DEG 0 x 4.4999999991010 RAD 0 x 785398163.3 GRA 0 x 4.4999999991010 cosx DEG 0 x 4.5000000081010 RAD 0 x 785398164.9 GRA 0 x 5.0000000091010 tan x DEG Same as sinx, except when x= (2n-1)90. RAD Same as sinx, except when x= (2n-1)/2. GRA Same as sinx, except when x= (2n-1)100. sin1x cos1x tan1x sinhx coshx sinh x
0 x x 9.x 230.x 4.x 9.99999999910-1

cosh1x tanhx tanh1x 10 x

log x/ln x 0 x 9.9999999991099 x 99.99999999 9.9999999991099 x 230.x x x ; x G 0 x 0 x 69 (x is an integer) 33

ex x x2 1/x 3 x x!

Functions

Input Range

nP r 0 n 99, r n (n, r is an integer) 1 {n!/( nr)!} 9.nCr 0 n 99, r n (n, r is an integer) 49 Pol(x, y) x, y 9.99999999910 (x2 +y2 ) 9.99 Rec(r, ) 0 r 9.99999999910 : Same as sinx, cosx
a, b, c b, c x110100 Decimal Sexagesimal Conversions x x0: 110100ylogx100 x0: yx0: yn, 2n+1 ( n is an integer) However: ylogx100 y0: x G 0 1101001/x logy100 y0: xy0: x2n1, n (n G 0; n is an integer) However: 1/x logy100 Total of integer, numerator, and denominator must be 10 digits or less (including division marks). x 11050 y 11050 n 110100 xn, yn, o, p A, B, r : n G 0 xn1, yn1 : n G 0, 1

SD (REG)

* Erros are cumulative with such internal continuous calx 3 culations as x y, x , x!, and x , so accuracy may be adversely affected.

Specifications

Power Supply: Solar cell and a single G13 Type button battery (LR44) Battery Life: Approximately 3 years (1 hour use per day). Dimensions: 10(H)i76(W)i150(D) mm 3 /8(H)i3(W)i57/8 (D) Weight: 85 g (3 oz) including battery Power Consumption: 0.0001W Operating Temperature: 0C ~ 40C (32F ~ 104F)

CASIO COMPUTER CO., LTD.

6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan

U.S. Pat. 4,410,956

SA9911-A Printed in China HA310537-1

APPROVED MODELS OF GRAPHIC CALCULATORS
IMPORTANT NOTES: Only the listed graphic calculator models are allowed in the examination halls. Students are responsible for clearing any information and/or programs stored in the graphic calculators before the examination. CASIO CASIO FX-3600PV CASIO FX-3650P CASIO FX-3950P CASIO FX-4500PA CASIO FX-3900PV HEWLETT PACKARD HP 9G SHARP SHARP EL-9400
CASIO FX-6300G CASIO FX-7000GB CASIO FX-7400G CASIO FX-7400G Plus CASIO GRAPH 35 PLUS
CASIO FX-7450G CASIO FX-9750G CASIO FX-9750G PLUS CASIO CFX-9850GB CASIO CFX-9850GB PLUS
CASIO GRAPH 65 CASIO CFX-9850GC PLUS CASIO FX-9860G CASIO CFX-9860G Slim CASIO CFX-9950GB PLUS

SHARP EL-9650

Sharp EL9900
TEXAS INSTRUMENT TEXAS INSTRU TI-73 TEXAS INSTRU TI-80 TEXAS INSTRU TI-84PLUS TI-84PLUS Silver Edition TI-Nspire w TI 84 Plus Keypad
TEXAS INSTRU TI-82 TEXAS INSTRU TI-85
TEXAS INSTRU TI-83 TEXAS INSTRU TI-86
TEXAS INSTRU TI-83PLUS TI-83PLUS Silver Edition
APPROVED CALCULATORS (NON-GRAPHICS)
AURORA CS93 DT168B DT260 DT703 DT394P CASIO

CASIO COLLEGE FX-100

SC 107 SC 110 SC 120 SC 150 SC 170
SC 200 SC 210 SC 260 SC 500 SC 500 Plus

SC 550 HC 687

CASIO DS-258 CANON F-788dx CASIO FC-100 CASIO FC-100V CASIO FC-200V CASIO FC-200 CASIO FX-100 CASIO FX-100AU CASIO FX-1000 CASIO FX-100C CASIO FX-100D CASIO FX-100MS CASIO FX-100S CASIO FX-100V CASIO FX-100W CASIO FX-100Z CASIO FX-102 CASIO FX-110 CASIO FX-115
CASIO FX-250HC CASIO FX-2600 CASIO FX-29 CASIO FX-270W PLUS CASIO FX-300 CASIO FX-3000 CASIO FX-300MS CASIO FX-300SA CASIO FX-300W CASIO FX-31 CASIO FX-310 CASIO FX-3200 CASIO FX-330 CASIO FX-3400P CASIO 35+ CASIO FX-350 CASIO FX-350A CASIO FX-350C CASIO FX-350D CASIO FX-350ES
CASIO FX-500A CASIO FX-500ES CASIO FX-50F CASIO FX-500MS CASIO FX-510 CASIO FX-550 CASIO FX-5500LA CASIO FX-550S CASIO FX-550TL CASIO FX-570 CASIO FX-570A CASIO FX-570AD CASIO FX-570AV CASIO FX-570C CASIO FX-570CD CASIO FX-570CV CASIO FX-570ES CASIO FX-570ES PLUS CASIO FX-570MS CASIO FX-570S
CASIO FX-82C CASIO FX-82D CASIO FX-82ES CASIO FX-82ES Plus CASIO FX-82L CASIO FX-82LB CASIO FX-82LP CASIO FX-82MS CASIO FX-82Super CASIO FX-82SX CASIO FX-82TL CASIO FX-82W CASIO FX-820MS CASIO FX-83ES CASIO FX-83MS CASIO FX-83WA CASIO FX-83GT Plus CASIO FX-85 CASIO FX-85ES CASIO FX-85MS
CASIO FX-990 CASIO FX-991 CASIO FX-991D CASIO FX-991ES CASIO FX-991ES Plus CASIO FX-991H CASIO FX-991S CASIO FX-991W CASIO FX-991M CASIO FX-991MS CASIO FX-991V CASIO FX-991WA CASIO FX-992S CASIO FX-992V CASIO FX-992VB CASIO FX-995 CASIO FX-D400 CASIO FX-P401 CASIO HL-122 CASIO HL-820LU

Updated as at 21/02/2011

CASIO FX-115D CASIO FX-115M CASIO FX-115MS CASIO FX-115N CASIO FX-115S CASIO FX-115V CASIO FX-115W CASIO FX-120 CASIO FX-122S CASIO FX-135 CASIO FX-140 CASIO FX-150 CASIO FX-160 CASIO FX-17 CASIO FX-180PA CASIO FX-19 CASIO FX-20 CASIO FX-2000 CASIO FX-21 CASIO FX-210 CASIO FX-220 CASIO FX-2200 CASIO FX-250 CASIO FX-2500 CASIO FX-250H
CASIO FX-350H CASIO FX-350HA CASIO FX-350HB CASIO FX-350MS CASIO FX-350TL CASIO FX-350TLG CASIO FX-350W CASIO FX-3600P CASIO FX-361 CASIO FX-37 CASIO FX-370 CASIO FX-3800P CASIO FX-39 CASIO FX-401 CASIO FX-4100P CASIO FX-411 CASIO FX-4200P CASIO FX-450 CASIO FX-451 CASIO FX-451M CASIO FX-470 CASIO FX-48 CASIO FX-451 CASIO FX-500
CASIO FX-570W CASIO FX-570Z CASIO FX-58 CASIO FX-580 CASIO FX-5800P CASIO FX-590 CASIO FX-603P CASIO FX-6100 CASIO FX-63 CASIO FX-65 CASIO FX-650 CASIO FX-68 CASIO FX-7100 CASIO FX-78 CASIO FX-80 CASIO FX-8000 CASIO FX-81 CASIO FX-8100 CASIO FX-82 CASIO FX-82 SOLAR CASIO FX-82AU CASIO FX-82B
CASIO FX-85N CASIO FX-85S CASIO FX-85V CASIO FX-85VH CASIO FX-85WA CASIO FX-880 CASIO FX-900 CASIO FX-901 CASIO FX-910 CASIO FX-911S CASIO FX-911SA CASIO FX-911W CASIO FX-911Z CASIO FX-915 CASIO FX-92 CASIO FX-920 CASIO FX-922V CASIO FX-95 CASIO FX-950 CASIO FX-95MS CASIO FX-95SG Plus CASIO FX-960 CASIO FX-961 CASIO FX-98 CASIO FX-9860G Slim
CASIO JS-140 CASIO LC-785
CANON CANON F200 CANON F402 CANON F-500 CANON F501 CANON F502 FIAMO
CANON F51 CANON F55S CANON F56 CANON F601 CANON F602
CANON F604 CANON F612 CANON F62 CANON F63 CANON F64
CANON F65 CANON F-715S CANON F72 CANON F720 CANON F73
CANON F800 CANON FS800 CANON LC-200H CANON LS-82Z
HEWLETT PACKARD HP 10B HP10BII HP10S KARCE KC107 SANYO SANYO CE 1201 SHARP SHARP EL-500L SHARP EL-500W SHARP EL-5003 SHARP EL-505 SHARP EL-506A SHARP EL-506G SHARP EL-506H

HP 11C HP 14B HP 15C

HP 30S HP 32SII HP 49G+
HP 65 Solar HP 6S HP 6S SOLAR

HP 8S HP 9S

KC 108

KC 109

KC S187

KC S3500