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 eswarrj on September 21st, 2014
Display Problem.
Only 0 is displayed.any solution
Current Answers
Answer #1: Posted by TommyKervz on September 22nd, 2014 12:09 AM
TommyKervz
Member since:
January 10th, 2013 Points: 17,776,853
Member since:
January 10th, 2013 Points: 17,776,853
put new batteries
or follow the instructions below to reset calculator
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 ... 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
...from the calculator, put it in a safe place where it will not get into the calculator. • Remove the battery if you do not plan to use the calculator for a long time (fx-95MS/100MS....
• The displays and illustrations (such as key markings) shown in personal injury or material damage if ignored. Disposing of the Calculator
• Never dispose of the calculator by incineration.
•...
User Guide - Page 5
... 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 these materials by any...
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
...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 Operations 34 kStacks 35 kInput...
User Guide - Page 9
... when the integer part of equations
F F 1 EQN
7 fx-95MS Modes
To perform this type of calculation:
Perform this To enter key operation: this mode:
Basic arithmetic calculations F 1
COMP
Standard deviation
F 2
SD
Regression calculations
F 3
REG
Solution of the mantissa has more than three digits. Two-line Display
The two-line display makes it possible to the "User's Guide...
User Guide - Page 10
... only one step.
• You can hold 79 "steps." One step is taken up to input more than twice displays additional setup screens.
Example: Equation
Calculations
EQN
Note!
• To return the calculation mode and setup to check the current calculation mode (SD, REG,
COMP) and angle unit setting (Deg, Rad, Gra) before beginning...
User Guide - Page 13
... you
want to specify the symbols you want to initialize the calculation mode and setup, and clear replay memory and variables. COMP F 1 • Negative values inside of times until you want to use the display setup (Disp) screen to perform basic calculations. fx-95MS:
1 r
Other Models: 1 r r
• Press the number key (1 or 2) that corresponds...
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...; You can use .
1(ab/c): Mixed fraction 2(d/c): Improper fraction
13
Disp
1
• Display the selection screen.
User Guide - Page 20
...Scientific Function Calculations
COMP
Use the F key to enter the COMP Mode when you want to all of times until you reach the angle unit setup screen shown below. particular variable: 0 A j 1. Deg Rad G r a
1 23
• Press the number key (1, 2, or 3) that corresponds to the angle unit you want to appear on the display... before starting the next calculation.
•...
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 the case 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 above...
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 3 ...
User Guide - Page 24
...to milligrams
→ 81.25 ҂10 -3 (mg)
0.08125 = J
Equation
EQN
Calculations
The EQN Mode lets you solve equations up to three degrees and simultaneous linear equations with ...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...
User Guide - Page 28
...fx-95MS) F F 1 (Other Models)
• Always start data input with A B 1(Scl) = to clear statistical memory.
• Input data using standard deviation.
To recall this key operation:
A U 1 A U 2 A U 3 A X 1 A X 2 A X 3
• Example: To calculate...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)...
User Guide - Page 30
...regression 3 (Exp) : Exponential regression r 1 (Pwr) : Power regression r 2 (Inv) : Inverse regression r 3 (Quad) : Quadratic regression
28
Press 2 to perform statistical calculations using regression. 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...
User Guide - Page 35
...perform an illegal mathematical operation.
• Action • Press e or r to display the calculation with the cursor located at the location of the error and make sure they are using... of the numeric stack or operator stack is outside the allowable calculation range.
• An attempt to display the calculation and correct the problem. See "Error Locator" for details. Stack ERROR • ...
User Guide - Page 37
... operations are performed first. • When a calculation contains an argument that the capacity of a stack is
a negative number, the negative number must be enclosed within parentheses. The numeric 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...
User Guide - Page 40
...
1 Press A i to turn power on the display of other models should refer to turn power off. Replacing the Battery Dim figures on . Screw 2 Remove the six screws that battery power is powered by a single AA-size battery.
Power Supply (fx-95MS only)
Users of the calculator indicate that
hold the back cover in...
User Guide - Page 41
... the "User's Guide 2 (Additional Functions)." Power Supply: Single AA-size battery (R6P (SUM-3))
Battery Life:
Approximately 17,000 hours continuous display of fx-115MS.
39 u Auto Power Off
Calculator power automatically turns off . Specifications (fx-95MS only)
Users of other models should refer to the same model.
Dimensions: 19.5 (H) i 78 (W) i 155 (D) mm 3/4Љ (H) ҂...
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