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 rosicr on April 24th, 2014
How To Use Modulus In Fx-991ms Calculator
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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 4
... certain components to suddenly burst, creating the risk of fire and personal injury.
• The displays and illustrations (such as key markings) shown in a safe place where it will not get into... the reach of the calculator by burning it 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 type of...
User Guide - Page 5
...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,...use of battery life. Moreover, CASIO Computer Co., Ltd. Heat can leak, causing damage to and malfunction of the calculator. Very low temperatures can cause slow display response, total failure of the display...
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 9
... 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 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
... below, press A B 2(Mode) =. • Pressing the F key more information about using the g key.
8 k Input Capacity
• The memory area used to change the calculator setup.
• In this manual, the name of any calculation, the cursor changes from "_" to "k" to input more than twice displays additional setup screens. One step is running low. Whenever you...
User Guide - Page 11
... 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 to the normal cursor from one calculation mode to an insert cursor t. k Making Corrections During Input
• Use e and r to move the cursor to the...
User Guide - Page 12
.... In the case of decimal values, you reach the exponential display format setup screen shown below.
sults using exponential notation.
On the format selection screen that determine at what point exponential notation is automatically used . • To change the exponential display format, press the F
key a number of the examples in this manual show calculation re-
User Guide - Page 13
... F key to enter the COMP Mode when you
want to initialize the calculation mode and setup, 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 for the...
User Guide - Page 14
k Fraction Operations uFraction Calculations
• Values are displayed in decimal format automatically whenever the total...2
1 C 2 + 1.6 =
• Results of calculations that conversion can skip all T operations before =. uDecimal ↔ Fraction Conversion
• Use the operation shown below to convert calculation results between decimal values and fraction values.
• Note ...
User Guide - Page 15
...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 specify the display format when a fraction calculation result is greater than one.
• To change the fraction display...
A B
1 2 3.00
• You can use the display setup (Disp) screen to use.
1(ab/c): Mixed fraction 2(d/c): Improper fraction
13
User Guide - Page 16
... when a value is selected. How about to input a mixed fraction while the d/c display format is increased from 40 to assign the Answer Memory value into a variable and then use *the current Answer
Memory value in the mark up or discount calculation, you try to 48? (15%, 20%) 46 , 40 A v e e e e e e 8 =
14
• An error...
User Guide - Page 20
... 2, or 3) that corresponds to the angle unit you want to appear on the display before starting the next calculation.
• π = 3.14159265359
k Trigonometric/Inverse Trigonometric Functions
• To ... 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 all of times until you reach the ...
User Guide - Page 22
...-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 is not).
(840)
7 A m 4 =
• Example 11: To determine how many different 4-member groups can be produced using the numbers 1 through 7
• Numbers...
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
... ҂10 -3 (mg)
0.08125 = J
Equation
EQN
Calculations
The EQN Mode lets you want to solve an equation. Use the F key to enter the EQN Mode when you solve equations...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...
User Guide - Page 28
... 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 that point is used to calculate values ...55 S n= SD
1. 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. tions noted nearby.
To recall ...
User Guide - Page 30
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 will be able to display or edit any longer after perform either the following operations. Press 1 if you want to perform statistical calculations using regression.
L i n Log Ex p
1 23
re
Pw r I nv Quad
1 23...
User Guide - Page 37
* fx-100MS/fx-115MS/fx-570MS/fx-991MS only. ** fx-570MS/fx-991MS only. • Operations of the matrix stack. Example: ( -2)4 = 16
-24 = -16
k Stacks
This calculator uses memory areas, called "stacks," to temporarily store values (numeric stack) and commands (command stack) according to right. • Operations enclosed in parentheses are performed first. • When a calculation contains ...
User Guide - Page 40
... is ±1 at the 10th digit. (In the case of exponential display, calculation error is ±1 at the last significant digit.) Errors are cumulative in the case of consecutive calculations, which can result in improper operation. Continued use of the calculator when the battery is low can also cause them to become large. (This is...
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