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!
Question posted by MBEKENGA on June 28th, 2022
Button Name
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Answer #1: Posted by SonuKumar on June 28th, 2022 4:21 AM
SonuKumar
Member since:
May 9th, 2021 Points: 16,604,800
Member since:
May 9th, 2021 Points: 16,604,800
What are the buttons on a scientific calculator?The four basic operators. Each is used in the same way as a standard calculator: + (addition), - (subtraction), x (multiplication), and ÷ (division). Used to specify calculations in which certain operations have precedence.
Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful.
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Sonu
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Related Casio fx 991MS Manual Pages
User Guide - Page 1
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.
E
http://world.casio.com/edu_e/
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 ... 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
...are facing correctly when you load it into the calculator. • Remove the battery if you do not plan to use the calculator for a long time (fx-95MS/100MS/570MS). • Use only the ...and personal injury.
• The displays and illustrations (such as key markings) shown in a safe place where it .
Batteries
• After removing the battery from the calculator, put it in this manual. ...
User Guide - Page 5
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 special, collateral, incidental, or consequential damages in...
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 9
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
operations for information about modes and their selection.
fx-95MS Modes
To perform this...
User Guide - Page 10
...step, so inputting A D, for 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 ...manual, the name of the display. • Be sure to the initial defaults shown below, press A B 2(Mode) =. If you need to enter in order to change the calculator setup.
...
User Guide - Page 13
ting, press the F key a number of calculations must be enclosed within parentheses. 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 for the decimal point and 3-digit separator. • To change the decimal...
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
... for each of the coefficients.
Element value 22 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 25
... a cubic equation), you can cause calculation to take more
time.
• ...name
x1=
Arrow indicates
direction you input a value for the equation. Pressing the t key at this point returns to the coefficient input screen.
• Certain coefficients can use the [ and ] keys to toggle the display between coefficients on the display.
Use [ and ] to
view other solutions.
Calculation...
User Guide - Page 28
... statistical memory.
• Input data using standard deviation.
Statistical
SD
Calculations
REG
Standard Deviation
SD
Use the F key to enter the SD ...SD
1. SD F 2 (fx-95MS) F F 1 (Other Models)
• Always start data input with A B 1(Scl) = to perform statistical calculations using the key sequence shown below. S
• Input data is indicated on the display (n value).
54 S ...
User Guide - Page 30
... type (Lin, Log, Exp, Pwr, Inv, Quad)
Regression Calculations
REG
Use the F key to enter the REG Mode when you will be able to display or edit any longer after perform either the following operations. REG F 3 (fx-95MS) F F 2 (Other Models)
• Entering the REG Mode displays screens like the ones shown below. Press 2 to...
User Guide - Page 36
ral logarithm base), memory name, or variable name:
2π, 3e, 5A, πA, etc.
6 Type B functions: With these functions, the value is entered and then ... A 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 the error and make required corrections. • Action • Press e or r to...
User Guide - Page 37
... stack has 10 levels and the command stack has 24 levels. * fx-100MS/fx-115MS/fx-570MS/fx-991MS only. ** fx-570MS/fx-991MS only. • Operations of the same precedence are performed first. • When a calculation contains an argument that the capacity of a stack is exceeded. • Matrix calculations use up to two levels of the matrix stack. Example...
User Guide - Page 40
... become dim. Power Supply (fx-95MS only)
Users of other models should refer to become large. (This is also true of internal consecutive calculations that
hold the back cover in... on the display of the calculator indicate that battery power is low.
Screw
38
* For a single calculation, calculation error is ±1 at the 10th digit. (In the case of exponential display, calculation error is ...
User Guide - Page 41
...
u Auto Power Off
Calculator power automatically turns off . Power Supply: Single AA-size battery (R6P (SUM-3))
Battery Life:
Approximately 17,000 hours continuous display of the fx-912MS should refer to the description of fx-115MS.
39 Dimensions: 19...for fx-912MS owners The names fx-912MS (Japan domestic model name) and fx-115MS (international model name) apply to turn power back on.
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