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 sakunik on August 12th, 2012
Decimal Places
How to remove the decimal places? My calculator is giving me rounded answers and do not show the correct answer to the right decimal places.. how to correct that?
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
...; After removing the battery from the calculator, put it in a safe place where it .
Safety Precautions
Be sure to use the calculator for a long time (fx-95MS/100MS/570MS). • Use only the type of fire and personal injury.
• The displays and illustrations (such as key markings) shown in this User's Guide are facing correctly when...
User Guide - Page 5
... 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 the fx-95MS/fx-100MS. A dead battery can cause slow display response, total failure of the display, and shortening of this unit discharges slightly...
User Guide - Page 7
...
Removing and Replacing the Calculator's Cover 1
Safety Precautions 2
Handling Precautions 3
Two-line Display 7
Before getting started 7
kModes 7 kInput Capacity 8 kMaking Corrections During Input 9 kReplay Function 9 kError Locator 9 kMulti-statements 10 kExponential Display Formats 10 kDecimal Point and Separator Symbols 11 k Initializing the Calculator 11
Basic Calculations...
User Guide - Page 9
...
Solution of the mantissa has more than three digits.
Two-line Display
The two-line display makes it possible to the "User's Guide 2 (Additional Functions)" for the fx-95MS only. Before getting started... k Modes
Before starting a calculation, you must first enter the correct mode as indicated in the table below. • The following table shows...
User Guide - Page 10
...than twice displays additional setup screens. See "Answer Memory" for calculation input can hold 79 "steps." k Input Capacity
• The memory area used to change the calculator setup....
If you can input up to 79 steps for a single calculation. Calculation Mode: Angle Unit: Exponential Display Format: Fraction Display Format: Decimal Point Character:
COMP Deg Norm 1 ab/c Dot
• ...
User Guide - Page 12
... the examples in this manual show calculation re- u Norm 2 With Norm 2, exponential notation is automatically used . • To change the exponential display format, press the F
key a number of times until you can display up of two or more than nine decimal places. • All of decimal values, you reach the exponential display format setup screen shown below...
User Guide - Page 13
... use .
1(Dot): Period decimal point, comma separator 2(Comma): Comma decimal point, period separator
k Initializing the Calculator
• Perform the following key operation when you reach the setup screen shown below.
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...
User Guide - Page 14
uDecimal ↔ Fraction Conversion
• Use the operation shown below to convert calculation results between decimal values and fraction values.
• Note that mix fraction and decimal values are always decimal. k Fraction Operations uFraction Calculations
• Values are displayed in decimal format automatically whenever the total number of digits of a fractional value (integer ...
User Guide - Page 15
... 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.
• Example 1: 2.75 ҃ 2 3 (Decimal → Fraction) 4
2.75 =
2.75
C
2 3 4.00
҃...
User Guide - Page 17
..., press the F key a 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...
User Guide - Page 18
...{, or A j followed by storing the result. • In addition to =, Answer Memory contents are also updated with two significant digits (Sci 2)
F..... 2(Sci) 2 1 \ 3 =
SCI
3.3-01
• Press F ..... 3(Norm) 1 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...
User Guide - Page 20
...A B 1(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 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...
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 24
...you want to
0.
view other elements.
k Engineering Notation Calculations
• Example 1: To convert 56,088 meters to ...25 ҂10 -3 (mg)
0.08125 = J
Equation
EQN
Calculations
The EQN Mode lets you solve equations up to three degrees and..., and input values for each of the coefficients. EQN F F 1 (fx-95MS) F F F 1 (Other Models)
k Quadratic and Cubic Equations
Quadratic Equation: ax2...
User Guide - Page 28
... is indicated on 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 To recall this type of data input up to perform statistical calculations using standard deviation.
tions noted nearby. SD F 2 (fx-95MS) F F 1 (Other Models)
• Always start data input with A B 1(Scl) = to calculate values for the...
User Guide - Page 36
k Order of Operations
Calculations are performed in front of precedence.
1 Coordinate transformation: Pol ...8736;*
9 Dot (•)** 0 and* # xnor*, xor*, or*
34 • Action • Press e or r to display the location of the cause of π, e (natu- ral logarithm base), memory name, or variable name:
2π, 3e, ... format in front of the error and make required corrections.
User Guide - Page 37
...:
1
23
45
123 4
56 7
Numeric Stack 12 23 34 45 54
Command Stack 1҂ 2 3 4ѿ 5҂
6 7ѿ
35
* fx-100MS/fx-115MS/fx-570MS/fx-991MS only. ** fx-570MS/fx-991MS only. • Operations of the same precedence are performed from left . exIn 120 → ex{In( 120)} • Other operations are performed from
right to their precedence during calculations.
User Guide - Page 40
...
cover. 3 Remove the old battery. 4 Load a new battery into the
unit with its positive k and negative l ends facing correctly. 5 Replace the back cover and
secure it in place with the six screws. 6 Press 5 to turn power off. Replace the battery as soon as possible when display figures become dim. Screw
38
* For a single calculation, calculation error...
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