Casio fx 991MS Support Question
Casio fx 991MS Support Question
Find answers below for this question about Casio fx 991MS - Scientific Display Calculator.Need a Casio fx 991MS manual? We have 1 online manual for this item!
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Related Casio fx 991MS Manual Pages
User Guide - Page 1
E
http://world.casio.com/edu_e/ fx-95MS fx-100MS fx-115MS (fx-912MS) fx-570MS fx-991MS
User's Guide
kfx-912MS owners
Please be sure to read the important notice of this manual.
User Guide - Page 3
Removing and Replacing the Calculator's Cover
• Before starting .....1 Holding the cover as shown in the illustration, slide the unit out of the cover. • After you are finished .....2 ...the illustration, slide the unit out of the cover. • Always slide the keyboard end of the unit into the cover
first. Never slide the display end of the unit into the cover.
.....1
.....2
1
User Guide - Page 4
...later reference. Caution
This symbol is used to use the calculator for a long time (fx-95MS/100MS/570MS). • Use only the type of battery specified for illustrative purposes
2... swallowed.
• Keep batteries out of the reach of fire and personal injury.
• The displays and illustrations (such as key markings) shown in personal injury or material damage if ignored. Never expose...
User Guide - Page 5
...., Ltd. Handling Precautions
• Be sure to press the 5 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 for the fx115MS/fx-570MS/fx-991MS, or at least once every two years for any claim of any kind...
User Guide - Page 7
... Display Formats 10 kDecimal Point and Separator Symbols 11 k Initializing the Calculator 11
Basic Calculations 11
k Arithmetic Calculations 11 kFraction Operations 12 kPercentage Calculations 14 kDegrees, Minutes, Seconds Calculations 15 kFIX, SCI, RND 15
Memory Calculations 16
kAnswer Memory 16 kConsecutive Calculations 17 kIndependent Memory 17 k Variables 17
Scientific...
User Guide - Page 8
... and
Permutation/Combination 20 kAngle Unit Conversion 21
kCoordinate Conversion (Pol (x, y), Rec (r 21
kEngineering Notation Calculations 22
Equation Calculations 22
kQuadratic and Cubic Equations 22 kSimultaneous Equations 24
Statistical Calculations 26
Standard Deviation 26 Regression Calculations 28
Technical Information 32
kWhen you have a problem 32 kError Messages 32 kOrder of...
User Guide - Page 9
... it possible to the "User's Guide 2 (Additional Functions)" for the fx-95MS only.
A separator symbol is displayed every three digits when the integer part of equations
F F 1 EQN
7
k Modes
Before starting a calculation, you must first enter the correct mode as indicated in the table below. • The following table shows the modes and required...
User Guide - Page 10
..., takes up only one step.
• You can input up each time you need to input more than twice displays additional setup screens. k Input Capacity
• The memory area used to change the calculator setup.
• In this manual where they are actually used for more information about using the g key.
8 •...
User Guide - Page 13
sin -1.23 → S R D 1.23 T
11 Disp
1
• Display the selection screen. A B 3(All) =
Basic Calculations COMP
k Arithmetic Calculations Use the F key to enter the COMP Mode when you want to initialize the calculation mode and setup, and clear replay memory and variables. fx-95MS:
1 r
Other Models: 1 r r
• Press the number key (1 or 2) that corresponds to
the setting...
User Guide - Page 15
fx-95MS:
1
Other Models: 1 r
• Press the number key (1 or 2) that corresponds to
the setting you want to use the display setup (Disp) screen to specify the display format when a fraction calculation result is greater than one.
• To change the fraction display format, press the q key a number of times until you reach the setup screen...
User Guide - Page 20
... screen shown below. A B 1(Mcl) =
• Example: 193.2 Ö 23 ҃ 8.4
193.2 Ö 28 ҃ 6.9 193.2 A j 1 \ 23 = p 1 \ 28 =
Scientific Function Calculations
COMP
Use the F key to appear on the display before starting the next calculation.
• π = 3.14159265359
k Trigonometric/Inverse Trigonometric Functions
• To change the default angle unit (degrees, radians, grads...
User Guide - Page 22
... ) ҃ 1.988647795
7 A H 123 =
• Example 4: 123 ѿ 302 ҃ 1023
123 + 30 K =
• Example 5: 123 ҃ 1728
12 N * =
* A N in a group of fx-570MS/fx-991MS.
• Example 6: 1 ҃ 12
1 3
ȕ
1 4
R 3 a , 4 a T a =
• Example 7: 8! ҃ 40320
8 A f =
• Example 8: To generate a random number between
0.000 and 0.999
A M =
0.66400
(The...
User Guide - Page 23
.../fx-570MS/
fx-991MS.
θ ҃ 1.047197551
0 o
• Press 0 n to display the value of .
21 D R G
1 2 3
• Pressing 1, 2, or 3 converts the displayed value to the corresponding angle unit.
• Example: To convert 4.25 radians to degrees
q ..... 1(Deg)
4.25 A v 2(R) =
4 . 25r
243.5070629
k Coordinate Conversion (Pol (x, y), Rec (r, θ ))
• Calculation...
User Guide - Page 24
EQN F F 1 (fx-95MS) F F F 1 (Other Models)
k Quadratic and Cubic Equations
Quadratic Equation: ax2 + bx + c = 0 Cubic Equation: ax3 + bx2 + cx + d = 0 Entering the EQN Mode and pressing r displays the initial quadratic/cubic equation screen.
Coefficient name
a?
Deg r ee?
2 3
Use this screen to
0. k Engineering Notation Calculations
• Example 1: To convert 56,088 meters to ...
User Guide - Page 28
...display (n value).
54 S 51 S 55 S 53 S S 54 S 52 S
Sample Standard Deviation (σnҀ1) = 1.407885953
A X 3 =
26
Statistical
SD
Calculations
REG
Standard Deviation
SD
Use the F key to enter the SD Mode when you want to perform statistical calculations.... SD F 2 (fx-95MS) F F 1 (Other Models)
• Always start data input with A B 1(Scl) = to calculate values for the following...
User Guide - Page 30
... you just input, without registering the value you just input. REG F 3 (fx-95MS) F F 2 (Other Models)
• Entering the REG Mode displays screens like the ones shown below. Changing to another mode Changing the regression type (Lin, Log, Exp, Pwr, Inv, Quad)
Regression Calculations
REG
Use the F key to enter the REG Mode when you...
User Guide - Page 36
... in front of the error and make required corrections. ral logarithm base), memory name, or variable name:
2π, 3e, 5A, πA, etc.
6 Type B functions: With these functions, the function key is pressed and then the value is pressed.
k Order of Operations
Calculations are performed in front of precedence.
1 Coordinate transformation: Pol (x, y), Rec...
User Guide - Page 37
... same precedence are performed from
right to left to their precedence during calculations. * fx-100MS/fx-115MS/fx-570MS/fx-991MS only. ** fx-570MS/fx-991MS only. • Operations of the matrix stack. The negative sign (-) is treated as a Type B function, so particular care is required when the calculation includes a high-priority Type A function, or power or root operations. The...
User Guide - Page 40
...fx-95MS only)
Users of the calculator indicate that battery power is low. Continued use of the calculator when the battery is low can also cause them to become large. (This is also true of internal consecutive calculations that are cumulative and may become large.
* For a single calculation, calculation... soon as possible when display figures become dim.
This calculator is powered by a ...
User Guide - Page 41
...should refer to the same model.
Owners of fx-115MS.
39 Specifications (fx-95MS only)
Users of flashing cursor.
Power Supply: Single AA-size battery (R6P (SUM-3))
Battery Life:
Approximately 17,000 hours continuous display of other models should refer to turn power ... 104°F)
Important notice for about six minutes. u Auto Power Off
Calculator power automatically turns off .
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