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 test1mar on February 14th, 2014
How To Use Fraction In Casio Fx991ms 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
...of fire and personal injury.
• The displays and illustrations (such as key markings) shown in a safe place where it . Caution
This symbol is used to indicate information that the battery's positive k ... 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 type of battery specified...
User Guide - Page 5
... high temperatures. 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 least once every two years for any claim of any kind...
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 10
... recalls the last result obtained, which you need to input more information about using the g key.
8 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 sections of the display. • Be sure to the initial defaults shown below, press A B 2(Mode) =. Setup...
User Guide - Page 11
...; Pressing t does not clear replay memory, so you can recall the last calculation even after an error occurs displays the calculation with the cursor positioned at the location where the error occurred.
9 k Making Corrections During Input
• Use e and r to move the cursor to the location you want.
• Press [ to delete the number...
User Guide - Page 12
... smaller expressions, which are automatically displayed using exponential notation. In the case of decimal values, you reach the exponential display format setup screen shown below.
Larger values are joined using the Norm 1 format.
10
u Norm 2 With Norm 2, exponential notation is used for Norm 2.
k Exponential Display Formats
This calculator can select between two formats...
User Guide - Page 13
... the following key operation when you
want to perform basic calculations.
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 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...
User Guide - Page 14
... as two seconds to perform.
12 uDecimal ↔ Fraction Conversion
• Use the operation shown below to enclose a negative exponent within parentheses. • It is not necessary to convert calculation results between decimal values and fraction values.
• Note that mix fraction and decimal values are displayed in decimal format automatically whenever the total number of...
User Guide - Page 15
...Conversion
• Example: 1
2 3
↔
5 3
1 C 2 C 3 =
1 2 3.00
A B
5 3.00
A 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 times until you want to
the setting you reach the setup screen shown below. Disp...
User Guide - Page 16
... calculate what is the percentage
increase in weight?
(160%)
300 + 500 A v
• Example 7: What is the percentage change when a value is increased from 40 to input a mixed fraction while the d/c display format... 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 46? • An error occurs ...
User Guide - Page 17
... places 2 (Sci): Number of significant digits 3 (Norm): Exponential display format
• Example 1: 200 Ö 7 ҂ 14 ҃ 200 \ 7 - 14 =
(Specifies three decimal places.)
F..... 1(Fix) 3
400.00
FIX
400.00000
15 k Degrees, Minutes, Seconds Calculations
• You can perform sexagesimal calculations using degrees (hours), minutes, and seconds, and convert between sexagesimal and...
User Guide - Page 18
...
16 COMP F 1
k Answer Memory • Whenever 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...
User Guide - Page 19
... result of a calculation can be input directly into memory, added to Ans, indicating it is the value that is currently on the display (and also stored...• Answer Memory can be used with a subsequent Type A function (x2, x3, x-1, x!, DRG'), +, -, ^(xy), x , ҂, Ö, nPr and nCr.
k Consecutive Calculations
• You can use the calculation result that is convenient for the...
User Guide - Page 20
...Mcl) =
• 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 appear on the display before starting the next calculation.
• π = 3.14159265359
k Trigonometric/Inverse Trigonometric Functions
• To change the default angle unit (degrees, radians, grads), press the F key a number...
User Guide - Page 22
...
3 A x =
• Example 10: To determine how many different 4-member groups can be produced using the numbers 1 through 7
• Numbers cannot be organized in the case of 10 individuals (210)
...1155; 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 =
• ...
User Guide - Page 23
...(1, 3) to polar coordinates (r,) (Rad)
r ҃ 2
f* 1 P L 3 T =
* A f in the case of fx-100MS/fx-115MS/fx-570MS/ fx-991MS.
k Angle Unit Conversion • Press A v to display the value of r, or 0 o to display the following menu. * 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 .
21
User Guide - Page 24
...22 Use the F key to enter the EQN Mode when you
should scroll to solve an equation.
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.
Coefficient name
a?
k Engineering Notation Calculations...
User Guide - Page 25
....
• Certain coefficients can use the [ and ] keys to take more
time.
• Example 1: To solve the equation x3 - 2x2 - • 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 move between coefficients on the display. Calculation starts and one of the...
User Guide - Page 37
... values (numeric stack) and commands (command stack) according to two levels 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 23 34 45 54
Command Stack 1҂...
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