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 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
..., creating the risk of fire and personal injury.
• The displays and illustrations (such as key markings) shown in this calculator. Safety Precautions
Be sure to read the following safety precautions before using...when you load 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/570MS). • Use only the...
User Guide - Page 5
... of any other party. be exposed 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...
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
... line shows the result. Two-line Display
The two-line display makes it possible to the "User's Guide 2 (Additional Functions)" for the fx-95MS only.
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...
User Guide - Page 10
Setup screens are described in the sections of this manual, the name of each time you can hold 79 "steps." 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 main title of the mode you know memory is taken...
User Guide - Page 13
... enclosed within parentheses. COMP F 1 • Negative values inside of times until you
want to initialize the calculation mode and setup, and clear replay memory and variables.
sin -1.23 → S R D 1.23 T
11 Disp
1
• Display the selection screen.
fx-95MS:
1 r
Other Models: 1 r r
• Press the number key (1 or 2) that corresponds to
the setting you...
User Guide - Page 15
fx-95MS:
1
Other Models: 1 r
• Press the number key (1 or 2) that corresponds to use.
1(ab/c): Mixed fraction 2(d/c): Improper fraction
13 Disp
1
• Display the selection screen.
• ...; You can 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 ...
User Guide - Page 20
...of times until you want to clear the values assigned to appear on the display before starting the next calculation.
• π = 3.14159265359
k Trigonometric/Inverse Trigonometric Functions
• ... ҃ 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 perform basic arithmetic...
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
* 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
... 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
...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 54 S 52 S
Sample Standard Deviation (σnҀ1) = 1.407885953
A X 3 =
26
Each time you press S to clear statistical memory.
• Input data using standard deviation. SD F 2 (fx...
User Guide - Page 30
... 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. L i n Log Ex p
1 23
re
Pw r I nv Quad
1 23
• Press the number key (1, 2, or 3) that corresponds to perform statistical calculations using regression. Press 1 if you want to the type...
User Guide - Page 36
• Action • Press e or r to display the location of the cause of π, e (natu-
x3, x2, xҀ1, x!, °...8226;)** 0 and* # xnor*, xor*, or*
34 k Order of Operations
Calculations are performed in front of precedence.
1 Coordinate transformation: Pol (x, y), Rec (r, θ) Differentials: d/dx* Integrations: ∫dx* Normal distribution: P(*, Q(*, R(*
2 Type A functions: ...
User Guide - Page 37
... 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 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. The negative...
User Guide - Page 40
... case of consecutive calculations, which can result in improper operation. To replace the battery
1 Press A i to the "User's Guide 2 (Additional Functions)." Screw
38
Replacing the Battery Dim figures on . Power Supply (fx-95MS only)
Users of the calculator when the battery is low. Replace the battery as soon as possible when display figures become...
User Guide - Page 41
...:
Approximately 17,000 hours continuous display of fx-115MS.
39 When this happens, press 5 to the same model. Owners of the fx-912MS should refer to the description of flashing cursor. Specifications (fx-95MS only)
Users of other models should refer to the "User's Guide 2 (Additional Functions)." u Auto Power Off
Calculator power automatically turns off .
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