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 fredDjgi on August 4th, 2014
Casio Fx 991ms How Do Matrix Inverse
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Current Answers
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 4
... out of the reach of them by burning it. Keep this calculator.
Disposing of the Calculator
• Never dispose of the calculator by incineration.
• Misuse of batteries can cause them to...calculator. • Remove the battery if you do not plan to use the calculator for a long time (fx-95MS/100MS/570MS). • Use only the type of fire and personal injury.
• The displays...
User Guide - Page 5
.... • In no event shall CASIO Computer Co., 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...
User Guide - Page 7
... 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 Function Calculations .......... 18
kTrigonometric/Inverse Trigonometric Functions...
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 its result at the same time.
• The upper line shows the calculation formula. • The lower line shows the result.
A separator symbol is displayed every three digits when the integer part of equations
F F 1 EQN
7 Two-line Display
The two-line display makes it possible to the "User's Guide 2 (Additional Functions)" for the...
User Guide - Page 10
One step is taken up to 79 steps for calculation input can use in order to input more than twice displays additional setup screens. If you need to enter in a subsequent calculation. 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 sections...
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
... 2, exponential notation is automatically used for integer values with more than 10 digits and decimal values with more than two decimal places. k Exponential Display Formats
This calculator can display up of two or more than nine decimal places. • All of times until you can select between two formats that appears, press 1 to...
User Guide - Page 13
..., 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 perform basic calculations. ting, press the F key a number of calculations must be enclosed within parentheses. sin -1.23...
User Guide - Page 15
fx-95MS:
1
Other Models: 1 r
• Press the number key (1 or 2) that corresponds 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...00
A B
1 2 3.00
• You can use .
1(ab/c): Mixed fraction 2(d/c): Improper fraction
13
Disp
1
• Display the selection screen.
User Guide - Page 20
...
• Certain types of calculations may take a long time to complete.
• Wait for the result to appear on the display before starting the next calculation.
• π = 3.14159265359
k Trigonometric/Inverse Trigonometric Functions
• To change....2 Ö 28 ҃ 6.9 193.2 A j 1 \ 23 = p 1 \ 28 =
Scientific Function Calculations
COMP
Use the F key to all of the variables.
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
... + d = 0 Entering the EQN Mode and pressing r displays the initial quadratic/cubic equation screen. Arrow indicates
direction you want to
0. Element value 22
view other elements. Use the F key to enter the EQN Mode when you
should scroll to solve an equation.
Coefficient name
a? k Engineering Notation Calculations
• Example 1: To convert 56,088...
User Guide - Page 28
...σn and σn-1, which you want to perform statistical calculations using the key sequence shown below. tions noted nearby. S
• Input data is indicated on the display (n value).
54 S 51 S 55 S 53 S ... S n= SD
1. Statistical
SD
Calculations
REG
Standard Deviation
SD
Use the F key to enter the SD Mode when you can recall using the key opera-
SD F 2 (fx-95MS) F F 1 (Other ...
User Guide - Page 30
..., you want to use.
1 (Lin) : Linear regression 2 (Log) : Logarithmic regression 3 (Exp) : Exponential regression r 1 (Pwr) : Power regression r 2 (Inv) : Inverse regression r 3 (Quad) : Quadratic regression
28 REG F 3 (fx-95MS) F F 2 (Other Models)
• Entering the REG Mode displays screens like the ones shown below. Press 1 if you want to register the value you just input. Changing...
User Guide - Page 37
...; 5҂
6 7ѿ
35 * fx-100MS/fx-115MS/fx-570MS/fx-991MS only. ** fx-570MS/fx-991MS only. • Operations of the same precedence are performed from
right to right. • Operations enclosed in parentheses are performed from left to left.
A stack error (Stack ERROR) occurs whenever you try to perform a calculation that the capacity of the matrix stack. Example: ( -2)4 = 16...
User Guide - Page 40
... to turn power off.
To replace the battery
1 Press A i to the "User's Guide 2 (Additional Functions)."
This calculator is low. Power Supply (fx-95MS only)
Users of other models should refer to turn power on the display of the calculator indicate that are performed in the case of ^(xy), x y , x!, 3 , nPr, nCr, etc.) In the vicinity...
User Guide - Page 41
...SUM-3))
Battery Life:
Approximately 17,000 hours continuous display of other models should refer to the same model...Power Off
Calculator power automatically turns off . Approximately 2 years when left with...fx-912MS owners The names fx-912MS (Japan domestic model name) and fx-115MS (international model name) apply to the description of the fx-912MS should refer to turn power back on. Owners of fx...
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