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 rachelmabrooka on March 13th, 2014
Problem With The Mode In Calculator (fx-991ms) Casio
at the top in screen there was a "M" and my math teacher cleared all my mode and that"M" went away.. I want that "M" back because I'm getting some answers wrong and I think it's due to that. Please help I have a math exam on sunday( in 2 days)!
Current Answers
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 5
... 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-100MS. A dead battery can cause slow display response, total failure of the display, and shortening of all important data.
• Avoid use of the calculator. be liable for special, collateral, incidental, or consequential...
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
... and its result at the same time.
• The upper line shows the calculation formula. • The lower line shows the result. 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 equations
F F 1 EQN
7 Before getting started...
User Guide - Page 10
... beginning a calculation. See "Answer Memory" for calculation input can use in the sections of this manual where they are described in a subsequent calculation.
k Input Capacity
• The memory area used to change the calculator setup.
• In this manual, the name of the display. • Be sure to the initial defaults shown below, press A B 2(Mode) =. Setup screens are...
User Guide - Page 11
...modes and settings by any of both expressions and results.
• Replay memory is on the display changes to the editing screen.
• Pressing the e or r key immediately after you finish a calculation displays the editing screen...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 ...
User Guide - Page 13
... following key operation when you want 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.
Disp
1
• Display the selection screen. A B 3(All) =
Basic Calculations COMP
k Arithmetic Calculations Use the F key to enter the COMP Mode when you
want to specify the symbols you...
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 format, press the q key a number of times until you reach the setup screen shown below.
Disp...
User Guide - Page 18
...
Use the F key to enter the COMP Mode when you want to perform a calculation using the specified number of decimal places.
200 \ 7 =
28.57100
(Internal rounding)
A Q
28.57100
- 14 =
399.99400
• Press F ..... 3(Norm) 1 to clear the Fix specification.
• Example 2: 1 Ö 3, displaying result with result whenever you press = after inputting values or an ex...
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 variable A. • Perform the following key operation when you reach the angle unit setup screen shown below. This operation deletes the data assigned 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
... 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 three unknowns. Coefficient name
a? Element value 22
Arrow indicates
direction you want to
0.
Use the F key to enter the EQN Mode when you
should scroll to solve an equation.
k Engineering Notation Calculations
• Example 1: To convert...
User Guide - Page 26
... the number of the coefficients.
Coefficient name
a 1? elements. knowns, and input values for each of un-
Element value 24 Unk now ns?
2 3
Use this screen to
view other
0.
x1=
D
R⇔I
0.25
x1=
A r
D
R⇔I
0.75 i
• Example 2: To solve the equation 8x2 - 4x +...= d2 a3x + b3y + c3z = d3
Entering the EQN Mode displays the initial simultaneous equation screen.
User Guide - Page 28
... want to perform statistical calculations using the key sequence shown below.
To recall this type of data input up to that point is used to calculate values for the following data : 55, 54, 51, 55, 53, 53, 54, 52
In the SD Mode:
A B 1 (Scl) = (Stat clear)
55 S n= SD
1.
S
• Input data is indicated on the display...
User Guide - Page 30
... inputting statistical data in memory. Changing 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 want 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.
Press 2 to exit...
User Guide - Page 32
...calculate the coefficient of data input up to that point is :
y = A + Bx.
• Example: Atmospheric Pressure vs. In the REG Mode:
1(Lin)
A B 1 (Scl) = (Stat clear...
Perform linear regression to determine the regression formula terms and correlation coefficient for linear regression is indicated on the display (n value).
15 P 1005 S
20 P1010 S 25 P 1011 S 30 P 1014 S
Regression Coefficient...
User Guide - Page 34
... if an error occurs, perform the following steps.
1. k Error Messages
The calculator is locked up while an error message is on
32
Press A B 2(Mode) = to confirm it is correct.
3. If the above steps do not correct the problem, press the 5 key.The calculator performs a self-check operation and deletes all data stored in any...
User Guide - Page 35
...calculation range.
• An attempt to perform a function calculation using . Math ERROR • Causes
• Calculation result is exceeded.
• Action • Simplify the calculation. See "Error Locator" for details. Pay special attention to display the calculation... input range.
• An attempt to display the calculation and correct the problem. Stack ERROR • Cause
• ...
User Guide - Page 37
... levels. * fx-100MS/fx-115MS/fx-570MS/fx-991MS only. ** fx-570MS/fx-991MS only. • Operations of the matrix stack. The negative sign (-) is treated as a Type B function, so particular care is
a negative number, the negative number must be enclosed within parentheses.
exIn 120 → ex{In( 120)} • Other operations are performed first. • When a calculation contains...
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