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 corn2011aan on October 6th, 2015
How To Reset The Fx-991ms
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Current Answers
Answer #1: Posted by TechSupport101 on October 6th, 2015 8:03 AM
TechSupport101
Member since:
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Member since:
May 24th, 2013 Points: 12,171,305
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
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
...displays and illustrations (such as key markings) shown in personal injury or material damage if ignored. Keep this calculator. Batteries
• After removing the battery from the calculator, put it in this calculator in a safe place where it .
Disposing of the Calculator
• Never dispose of the calculator... batteries to use the calculator for a long time (fx-95MS/100MS/570MS). •...
User Guide - Page 5
... can cause slow display response, total failure of the display, and shortening of the calculator. 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...
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
... for information about modes and their selection.
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.
A separator symbol is displayed every three digits when the integer part of...
User Guide - Page 10
...." Setup screens are described in the sections of this manual where they are actually used 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 indicators appear in the upper part of the mode you need...
User Guide - Page 12
...digits and decimal values with more than two decimal places. k Exponential Display Formats
This calculator can select between two formats that determine at what point exponential notation is... 1 or 2 for integer values with more than nine decimal places. • All of the examples in this manual show calculation re-
sults using the Norm 1 format.
10 F i x Sc i No r m
1 23
• Press 3....
User Guide - Page 13
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 initialize the calculation mode and setup, and clear replay memory and variables.
ting, press the F key a number of calculations must be enclosed within parentheses. COMP F 1 • Negative values inside of...
User Guide - Page 15
Disp
1
• 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 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...
User Guide - Page 20
...
• Wait for the result to appear on the display before starting the next calculation.
• π = 3.14159265359
k Trigonometric/Inverse Trigonometric...: 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 enter the COMP Mode when you want to use. (90° = π radians = 100 grads) 2 18 ...
User Guide - Page 22
...Example 10: To determine how many different 4-digit
values can be produced using the numbers 1 through 7
• Numbers cannot be organized 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 above value...
User Guide - Page 23
...fx-100MS/fx-115MS/fx-570MS/ fx-991MS.
k Angle Unit Conversion • Press A v to display the following menu.
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
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. Deg r ee?
2 3
Use this screen to solve an equation.
k Engineering Notation Calculations
• Example 1: To convert 56,088 ...
User Guide - Page 28
... 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 Statistical
SD
Calculations
REG
Standard Deviation
SD
Use... the F key to enter the SD Mode when you can recall using the key opera- tions noted nearby. SD F 2 (fx-95MS) F F 1 (...
User Guide - Page 30
... 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 just input. 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 have just...
User Guide - Page 37
...to left to their precedence during calculations.
Squaring a matrix, cubing a matrix, or inverting a matrix uses one stack level. (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 * fx-100MS/fx-115MS/fx-570MS/fx-991MS only. ** fx-570MS/fx-991MS only. • Operations of the matrix...
User Guide - Page 40
... the "User's Guide 2 (Additional Functions)."
To replace the battery
1 Press A i to become dim. Power Supply (fx-95MS only)
Users of the calculator when the battery is low can also cause them to turn power on the display of inflection, errors are cumulative and may become large.
Screw
38
Replace the battery as soon...
User Guide - Page 41
... should refer to 104°F)
Important notice for about six minutes. 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 back on. u Auto Power Off
Calculator power automatically turns off .
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