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 wombaoston on July 2nd, 2014
How To Use Log2 In Fx-991ms Scientific Calculator
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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 4
Never expose batteries to use the calculator for a long time (fx-95MS/100MS/570MS). • Use only the type of fire and personal injury. &#... displays and illustrations (such as key markings) shown in a safe place where it will not get into the calculator. • Remove the battery if you load it . Keep this calculator.
Disposing of the Calculator
• Never dispose of the calculator...
User Guide - Page 5
... can cause slow display response, total failure of the display, and shortening of battery life. 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...
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
... at the same time.
• The upper line shows the calculation formula. • The lower 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. k Modes
Before starting a calculation, you must first enter the correct mode as indicated in the...
User Guide - Page 10
... operator key A A or p key operation does not take up a step, so inputting A D, for calculation input can use in the upper part of the display. • Be sure to change the calculator setup.
• In this manual where they are actually used for example, takes up only one step.
• You can input up each section...
User Guide - Page 11
... both expressions and results.
• Replay memory is on the display inserts the input at the insert cursor position.
• Pressing A K, or = returns to the normal cursor from one calculation mode to another When you turn off the calculator. k Making Corrections During Input
• Use e and r to move the cursor to the location you...
User Guide - Page 12
... determine at what point exponential notation is automatically used . • To change the exponential display format, press the F
key a number of two or more than 10 digits and decimal values with more smaller expressions, which are automatically displayed using the Norm 1 format.
10
k Exponential Display Formats
This calculator can select between two formats that appears, press...
User Guide - Page 13
... and 3-digit separator. • To change the decimal point and separator symbol set- 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 perform basic calculations. COMP F 1 • Negative values inside of times until you reach the setup screen shown below...
User Guide - Page 14
...↔ Fraction Conversion
• Use the operation shown below to enclose a negative exponent within parentheses. sin 2.34 ҂ 10-5 → S 2.34 e D 5
• Example 1: 3҂(5҂10-9) ҃ 1.5҂10-8 3 - 5 e D 9 =
• Example 2: 5҂(9ѿ7) ҃ 80 5 - k Fraction Operations uFraction Calculations
• Values are displayed in decimal format automatically...
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 • Example 1: 2.75... B
1 2 3.00
• 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 key a number of...
User Guide - Page 18
... performs the same calculation using memory. Memory Calculations COMP
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 two...
User Guide - Page 20
...: 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 all of times until you want 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
...8226; Example 10: To determine how many different 4-digit
values can be produced using the numbers 1 through 7
• Numbers cannot be duplicated within the same ...123 ѿ 302 ҃ 1023
123 + 30 K =
• Example 5: 123 ҃ 1728
12 N * =
* A N in the case of fx-570MS/fx-991MS.
• Example 6: 1 ҃ 12
1 3
ȕ
1 4
R 3 a , 4 a T a =
• Example 7: 8! ҃ ...
User Guide - Page 23
...fx-100MS/fx-115MS/fx-570MS/ fx-991MS.
k Angle Unit Conversion • Press A v to display the following menu.
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
...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.
Deg r ee?
2 3
Use...81.25 ҂10 -3 (mg)
0.08125 = J
Equation
EQN
Calculations
The EQN Mode lets you solve equations up to three degrees and simultaneous linear ...
User Guide - Page 28
... using the key opera- SD F 2 (fx-95MS) F F 1 (Other Models)
• Always start data input with A B 1(Scl) = 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
...; After inputting statistical data in memory.
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,...display or edit individual data items any longer after perform either the following operations. Changing to another mode Changing the regression type (Lin, Log, Exp, Pwr, Inv, Quad)
Regression Calculations
REG
Use...
User Guide - Page 37
... parentheses. A stack error (Stack ERROR) occurs whenever you try to perform a calculation that is so complex that the capacity of a stack is exceeded. • Matrix calculations use up to their precedence during calculations. Squaring a matrix, cubing a matrix, or inverting a matrix uses one stack level. (fx-570MS, fx-991MS only)
• Example:
1
23
45
123 4
56 7
Numeric Stack 12...
User Guide - Page 40
... also cause them to become large. (This is low.
Continued use of the calculator when the battery is powered by a single AA-size battery. To...it in improper operation. Power Supply (fx-95MS only)
Users of other models should refer to turn power on the display of the calculator indicate that battery power is also true of internal consecutive calculations that are performed in the case ...
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