Casio FX-991ES Support Question
Casio FX-991ES Support Question
Find answers below for this question about Casio FX-991ES.Need a Casio FX-991ES manual? We have 2 online manuals for this item!
Question posted by muhammadahmerg2727 on November 25th, 2022
How To Play Game Fx-991es Plus Calculator?
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Current Answers
Answer #1: Posted by SonuKumar on November 25th, 2022 9:20 AM
SonuKumar
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Related Casio FX-991ES Manual Pages
User Guide - Page 4
... angle unit. Example numbers (like "") in this User's Guide, cursor key operation is represented in this User's Guide. Moreover, CASIO Computer Co., Ltd. Initializing the Calculator
Perform the following shows an example of the actual key operation you perform.
• The cursor key is selected by any kind whatsoever by the...
User Guide - Page 5
... that can cause certain components to suddenly burst, creating the risk of small children. Disposing of the Calculator
• Never dispose of battery specified for later reference. E-3 Keep this manual handy for this calculator in
this calculator.
Never expose the battery to direct heat or dispose of it by burning it. If accidentally...
User Guide - Page 6
....
• Avoid use thinner, benzene or other pointed object. • Use a soft, dry cloth to strong impact.
• Never twist or bend the calculator. Avoid carrying the calculator in areas subjected to become corrupted or lost completely.
Doing so can remove printed markings and can cause slow display response, total failure of...
User Guide - Page 7
...Off
• Press O to turn on the display. Use d and e to turn off the calculator. After the setting is the way you press N) is low. Important!
• If adjusting display ... not improve display readability, it , and then affix the hard case to the back of the calculator as shown in the illustration below. E-5 k Adjusting Display Contrast
1N(SETUP)c6(]CONT') This displays the contrast adjustment...
User Guide - Page 8
.... The keypad will unshift and this indicator will disappear when you press t. The calculator is radians. This indicator appears after you press a key. The default angle unit...of a variable name to assign a value to recall the variable's value. Example:
Input expression
{ Calculation result
k Display Indicators
Sample Display:
CMPLX
This indicator:
S
A
M
STO
RCL
STAT CMPLX
MAT VCT...
User Guide - Page 9
... some other type of a number table based on an expression Vector calculations
Specifying the Calculation Mode (1) Press N to control how the calculations are executed and displayed. Calculation Modes and Calculator Setup
k Calculation Modes
When you want to perform this mode:
COMP CMPLX
STAT
BASE-N
EQN MATRIX
TABLE
VECTOR
(2) Press the number key that takes a long time...
User Guide - Page 10
...and other expressions to 9) controls the number of significant digits for displayed calculation results. Math
Math Format
Linear Format
Specifying the Default Angle Unit
To ...they are rounded off to 10) controls the number of
decimal places for displayed calculation results. Calculation results are written on paper.
• Linear format causes fractions and other expressions ...
User Guide - Page 11
... operation:
1Nc5(Disp)1(Dot) 1Nc5(Disp)2(Comma)
• The setting you configure here is applied for input values is always a dot ( ). The decimal point for calculation results
.
• Norm: Selecting one of the STAT Mode STAT editor screen on or off.
Outside the specified range, results are displayed using exponential format.
User Guide - Page 12
...: COMP MthIO Deg Norm1 d/c a+bi OFF Dot
• To cancel initialization without doing anything, press A(Cancel) instead of =. k Initializing the Calculation Mode and Other Settings
Performing the following procedure initializes the calculation mode and other setup settings as they are written.Then simply press the = key to execute it is automatically input...
User Guide - Page 13
... that when you are inputting functions with Math format, each key operation uses up one byte.
Omitting the Multiplication Sign You can scroll left of a calculation, immediately before the = key is displayed, you can omit the multiplication sign (×) in any of the expression. For details, see "Inputting with Math Format...
User Guide - Page 14
... overwrite mode, any new character you input replaces the character at a convenient point and
calculate the result. The cursor is a horizontal flashing line ( ) when the overwrite mode is selected.... • The initial default for more information. • The calculator automatically changes to the insert mode whenever you change to the overwrite mode when you need it...
User Guide - Page 15
... × 12 LINE Insert Mode:
369**12
dd
Y Overwrite Mode:
369**12
ddd
Y
Correcting a Calculation Example: To correct cos(60) so it becomes sin(60) LINE Insert Mode:
c60)
dddY
s Overwrite Mode:
c60)
...dddd
s Inserting Input into a Calculation Always use the insert mode for this operation. Use d or e to move the cursor to the ...
User Guide - Page 16
...14 ÷ 0 × 2 = by pressing A, which clears the calculation.
This will display the part of expressions can then make necessary corrections. LINE
14/0*2=
Press e or... d. If this happens, divide the calculation into multiple parts and calculate each part separately. k Displaying the Location of 14 ÷ 10 × 2 =...
User Guide - Page 17
...is
selected. • Pay close attention to the location and size of e) Square Root Cube Root Square, Cube Reciprocal Power Power Root Integral Derivative Σ Calculation Absolute Value Parentheses
Key Operation ' 1'(() & 1l($) 1i(%) ! 1!(#) w, 1w(x3) E 6 16(") 7 17(F) 1&(8) 1w(Abs) ( or )
Bytes 9 13 6 4 4 4 9 4 5 4 9 8 6 8 4 1
Math Format Input Examples • The following operations are...
User Guide - Page 18
... the required key operations to use them. If you need to here.
Example 3: To input (1 + 2 )2 × 2 =
5
MATH
Math
(1+'2c5e)
w*2=
• When you press = and obtain a calculation result using Math format, you can be cut off as shown here.
User Guide - Page 19
...; form (form that includes π within irrational number display) display conditions are the same as those for the input/output format, you can specify whether calculation results should be displayed in a form that includes expressions like '2 and π (irrational number form). • Pressing = after inputting...
User Guide - Page 20
... above ranges.
Results that includes ' within irrational number display) results can have up to both the real part and the imaginary part.
Complex number Abs calculations
d. Angle Unit Setting Deg Rad
Gra
Angle Value Input
Units of 15°
Multiples
of
1 12
π
radians
50 Multiples of grads
3
Input Value Range...
User Guide - Page 21
... three or more terms.
Example: (1 + '2 + '3 )(1 - '2 - '3 )(= -4 - 2'6 ) = -8.898979486
E-19 Example: '3 + '2 = 10'3 + 11'2
11 10
110
• The result is the least common multiple of c and f.
• Since calculation results are reduced to a common denominator. The following shows the range for each of the examples are displayed in decimal form -
User Guide - Page 22
...Places and Number of Significant Digits You can specify a fixed number of Display Digits".
k Arithmetic Calculations
Use the +, -, *, and / keys to perform arithmetic, fraction, percent, and sexagesimal calculations.
For more information, see "Calculation Priority Sequence". Example: 1 ÷ 6 =
LINE
Initial default setting (Norm1)
FIX
3 decimal places (Fix3)
SCI
3 significant...
User Guide - Page 23
...
Fraction Format Pressing the 1f(
a -bc
⇔
-dc
)
key
toggles
the
display
fraction
between mixed fraction and improper fraction format.
Example: (2 + 3) × (4 - 1) = 15
LINE
(2+3)* (4-1=
k Fraction Calculations
How you should input fractions depends on the input/output format that involves both fraction and decimal values is displayed in decimal format. This is...
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