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 niphil on March 22nd, 2014
How Can I Solve Matrix Problem In Fx-991ms
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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 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
....
Disposing of the Calculator
• Never dispose of fire and personal injury.
• The displays and illustrations (such as key markings) shown in this calculator in personal injury or...fx-95MS/100MS/570MS). • Use only the type of small children.
Caution
This symbol is used to direct heat or dispose of them to leak and damage nearby items, and can result in this calculator...
User Guide - Page 5
...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 the fx-95MS/fx...of the calculator's case, and damage to temperature extremes. Heat can cause slow display response, total failure of the display, and shortening of the calculator. only,...
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
... displayed every three digits when the integer part of other models should refer to view both the calculation formula and its result at the same time.
• The upper line shows the calculation formula. • The lower line shows the result.
Users of the mantissa has more than three digits. Before getting started... fx...
User Guide - Page 13
...; S R D 1.23 T
11
COMP F 1 • Negative values inside of times until you
want to perform basic calculations. 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...
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 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 shown below. • Example 1: 2.75 ҃...
User Guide - Page 20
...; 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 enter the COMP Mode when 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
• To change the default...
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. view other elements.
Coefficient name
a?
Use the F key to enter the EQN Mode when you
should scroll to solve an equation.
Arrow indicates
direction you want to
0. Element value 22 k Engineering Notation Calculations
• Example 1: To convert 56,088 meters...
User Guide - Page 25
... on the display. solutions.
This is a complex number, the real part of the solutions for the equation. Calculation starts and one of a solution.
23
• Any time until you input a value for the final coefficient (c for a quadratic equation, d for a cubic equation), you can cause calculation to take more
time.
• Example 1: To solve the...
User Guide - Page 28
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
SD F 2 (fx-95MS) F F 1 (Other Models)
• Always start data input with A B 1(Scl) = to perform statistical calculations using standard deviation.
Each time you press S to register your input, the number of value:
&#...
User Guide - Page 30
..., Log, Exp, Pwr, Inv, Quad)
Regression Calculations
REG
Use the F key to enter the REG Mode when you want to display or edit individual data items any of regression you ..., you will not 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...
User Guide - Page 35
...display the calculation with the cursor located at the location of the error and make sure they are using a value that exceeds the allowable input range.
• An attempt to perform a function calculation... required corrections.
Math ERROR • Causes
• Calculation result is exceeded.
• Action • Simplify the calculation. Stack ERROR • Cause
• The capacity ...
User Guide - Page 37
...exIn 120 → ex{In( 120)} • Other operations are performed first. • When a calculation contains an argument that the capacity of a stack is exceeded. • Matrix calculations use up to their precedence during calculations. * 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. •...
User Guide - Page 40
... become large. Power Supply (fx-95MS only)
Users of other models should refer to the "User's Guide 2 (Additional Functions)." Continued use of the calculator when the battery is powered by a single AA-size battery. * For a single calculation, calculation error is ±1 at the 10th digit. (In the case of exponential display, calculation error is ±1 at...
User Guide - Page 41
... battery (R6P (SUM-3))
Battery Life:
Approximately 17,000 hours continuous display of the fx-912MS should refer to the same model. u Auto Power Off
Calculator power automatically turns off . When this happens, press 5 to 104°F)
Important notice for about six minutes.
Specifications (fx-95MS only)
Users of other models should refer to the...
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