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 3
Never slide the display end of the unit into the cover.
.....1
.....2
1 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 Holding ...
User Guide - Page 4
..., creating the risk of small children. Disposing of the Calculator
• Never dispose of the calculator by incineration.
• Misuse of battery specified for this calculator in a safe place where it in this User's Guide are for a long time (fx-95MS/100MS/570MS). • Use only the type of batteries can cause them by burning...
User Guide - Page 5
...; 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 the fx-95MS/fx-100MS. A dead battery can cause discoloration or deformation...
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
... and required
operations for information about modes and their selection.
Two-line Display
The two-line display makes it possible to the "User's Guide 2 (Additional Functions)" for the fx-95MS only. Users of other models should refer to view both the calculation formula and its result at the same time.
• The upper line...
User Guide - Page 10
... the last result obtained, which you need to enter in order to perform the calculations being described is indicated in a subsequent calculation. If you need to input more information about using the g key.
8
Calculation Mode: Angle Unit: Exponential Display Format: Fraction Display Format: Decimal Point Character:
COMP Deg Norm 1 ab/c Dot
• Mode indicators appear in...
User Guide - Page 11
... to the editing screen.
• Pressing the e or r key immediately after you finish a calculation displays the editing screen for that calculation.
• Pressing t does not clear replay memory, so you can recall the last calculation even after an error occurs displays the calculation with the cursor positioned at the insert cursor position.
• Pressing A K, or = returns...
User Guide - Page 12
....
k Exponential Display Formats
This calculator can select between two formats that is made up to select Norm 1 or 2 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 re- F i x Sc i No r m
1 23
• Press 3. sults using a colon...
User Guide - Page 13
...; Negative values inside of times until 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 you want to use the display setup (Disp) screen to specify the symbols you
want to enter the...
User Guide - Page 15
...Display the selection screen. fx-95MS:
1
Other Models: 1 r
• Press the number key (1 or 2) that corresponds to
the setting you want to specify the display format when a fraction calculation result is greater than one.
• To change the fraction display...1 2 3.00
• You can use the display setup (Disp) screen to use.
1(ab/c): Mixed fraction 2(d/c): Improper fraction
13
User Guide - Page 19
... with a subsequent Type A function (x2, x3, x-1, x!, DRG'), +, -, ^(xy), x , ҂, Ö, nPr and nCr. k Consecutive Calculations
• You can use the calculation result that is currently on the display (and also stored in Answer Memory) as variable M.
• To clear independent memory (M), input 0 A j 3 (M+).
• Example: 23 ѿ 9 ҃ 32 53 Ҁ 6 ҃ 47
Ҁ...
User Guide - Page 20
...
193.2 Ö 28 ҃ 6.9 193.2 A j 1 \ 23 = p 1 \ 28 =
Scientific Function Calculations
COMP
Use the F key to enter the COMP Mode when you want to use. (90° = π radians = 100 grads) 2 18
particular variable: 0 A j 1. Deg ...want to clear the values assigned to appear on the display before starting the next calculation.
• π = 3.14159265359
k Trigonometric/Inverse...
User Guide - Page 23
* A n in the case of fx-100MS/fx-115MS/fx-570MS/
fx-991MS.
θ ҃ 1.047197551
0 o
• Press 0 n to display the value of r, or 0 o to display the value of fx-100MS/fx-115MS/fx-570MS/ fx-991MS.
k Angle Unit Conversion • Press A v to polar coordinates (r,) (Rad)
r ҃ 2
f* 1 P L 3 T =
* A f in the case of .
21
D R G
1 2 3
• Pressing 1, 2, or ...
User Guide - Page 24
... an equation. Arrow indicates
direction you want to
0.
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. k Engineering Notation Calculations
• Example 1: To convert 56,088 meters to kilometers...
User Guide - Page 28
... Mode when you want to perform statistical calculations using the key opera- S
• Input data is used to that point is indicated on the 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 To recall this type of data input up to calculate values for the following data : 55...
User Guide - Page 30
REG F 3 (fx-95MS) F F 2 (Other Models)
• Entering the REG Mode displays screens like the ones shown below.
If you do this, however, you will not be able to display or edit any of regression you just input.
Changing to another mode Changing the regression type (Lin, Log, Exp, Pwr, Inv, Quad)
Regression Calculations
REG
Use the...
User Guide - Page 37
.... (fx-570MS, fx-991MS only)
• Example:
1
23
45
123 4
56 7
Numeric Stack 12 23 34 45 54
Command Stack 1҂ 2 3 4ѿ 5҂
6 7ѿ
35 The negative sign (-) is treated as a Type B function, so particular care is
a negative number, the negative number must be enclosed within parentheses. Example: ( -2)4 = 16
-24 = -16
k Stacks
This calculator uses...
User Guide - Page 40
...
unit with the six screws. 6 Press 5 to become dim. Power Supply (fx-95MS only)
Users of the calculator when the battery is low can also cause them to turn power off. This calculator is low.
Replace the battery as soon as possible when display figures become large. (This is also true of internal consecutive...
User Guide - Page 41
... display of fx-115MS.
39 When this happens, press 5 to the same model. Approximately 2 years when left with power turned off if you do not perform any operation for fx-912MS owners The names fx-912MS (Japan domestic model name) and fx-115MS (international model name) apply to turn power back on. u Auto Power Off
Calculator...
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