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 cadcKa on October 15th, 2013
How To Change Battery For Casio 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
... for a long time (fx-95MS/100MS/570MS). • Use only the type of small children. If accidentally swallowed, consult with a physician immediately.
• Never charge batteries, try to take batteries apart, or allow batteries to read the following safety precautions before using this manual.
Batteries
• After removing the battery from the calculator, put it in a safe...
User Guide - Page 5
... all important data.
• Avoid use of the calculator's case, and damage 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 special...
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
... three digits when the integer part 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. Users of other models should refer to view both the calculation formula and its result at the same time.
• The upper line shows...
User Guide - Page 10
.... Whenever you input the 73rd step of the display. • Be sure to let you need to 79 steps for a single calculation.
Setup screens are described in order to the initial defaults shown below, press A B 2(Mode) =. k Input Capacity
• The memory area used to change the calculator setup.
• In this manual, the name...
User Guide - Page 11
.... k Replay Function
• Every time you initialize modes and settings by any of the calculation you change to the normal cursor from one calculation mode to the editing screen.
• Pressing the e or r key immediately after you finish a calculation displays the editing screen for storage of both expressions and results.
• Replay memory is on...
User Guide - Page 12
... 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 times until you reach the exponential display format setup screen shown below.
k Exponential Display Formats
This calculator can select between two formats that appears, press 1 to 10 digits.
u Norm 1 With Norm...
User Guide - Page 13
... setup, and clear replay memory and variables. A B 3(All) =
Basic Calculations COMP
k Arithmetic Calculations Use the F key to perform basic calculations. sin -1.23 → S R D 1.23 T
11
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...
User Guide - Page 15
... (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. fx-95MS:
1
Other Models: 1 r
• Press the number key (1 or 2) that corresponds to use...
User Guide - Page 16
... A v , * As shown here, if you need to input a mixed fraction while the d/c display format is selected.
• An error occurs if you try to assign the Answer Memory value into...change when a value is increased from 40 to 48? (15%, 20%) 46 , 40 A v e e e e e e 8 =
14 k Percentage Calculations
• Example 1 : To calculate 12% of 1500 (180) 1500 - 12 A v
• Example 2: To calculate...
User Guide - Page 17
... can perform sexagesimal calculations using degrees (hours), minutes, and seconds, and convert between sexagesimal and decimal values.
• Example 1: To convert the decimal value 2.258 to a sexagesimal value and then back to change the settings for the number of decimal places, the number of significant digits, or the exponential display format, press the...
User Guide - Page 19
...an operator key while a result is displayed causes the displayed value to change to Ans, indicating it is the ...value that is convenient for the exponent. • Answer Memory contents are nine variables (A through F, M, X and Y), which can be input directly into memory, added to 12 digits for the mantissa
and two digits for calculating...
User Guide - Page 20
... 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 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...
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 30
... Quadratic regression
28 Changing to another mode Changing the regression type (Lin, Log, Exp, Pwr, Inv, Quad)
Regression Calculations
REG
Use the ...display or edit any of regression 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 1 if you want to display...
User Guide - Page 37
...; ex{In( 120)} • Other operations are performed first. • When a calculation contains an argument that the capacity of a stack is required when the calculation includes a high-priority Type A function, or power or root operations. * fx-100MS/fx-115MS/fx-570MS/fx-991MS only. ** fx-570MS/fx-991MS only. • Operations of the same precedence are performed from left to...
User Guide - Page 40
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 low. This calculator is powered by a single AA-size battery.
Replace the battery as soon as possible when display figures become large. Screw
38 Continued use of the calculator when the battery is low can also...
User Guide - Page 41
... of other models should refer to the "User's Guide 2 (Additional Functions)." Specifications (fx-95MS only)
Users of fx-115MS.
39 Power Supply: Single AA-size battery (R6P (SUM-3))
Battery Life:
Approximately 17,000 hours continuous display of flashing cursor.
u Auto Power Off
Calculator power automatically turns off .
When this happens, press 5 to turn power back on...
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