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 Kranthikumarsriram on November 28th, 2015
Dobuts
What are the different things that can be made with this calci.
Current Answers
Answer #1: Posted by TechSupport101 on November 28th, 2015 6:49 AM
TechSupport101
Member since:
May 24th, 2013 Points: 12,171,255
Member since:
May 24th, 2013 Points: 12,171,255
Hi. See the User Guide (and Appendix) here https://www.helpowl.com/manuals/Casio/FX991ES/145884 for a list of features the model is capable of.
Related Casio FX-991ES Manual Pages
User Guide - Page 3
... indicates Linear format. For details about input/output formats, see "Specifying the Input/Output Format".
• Keycap markings indicate what a key inputs or what the different colors of the second key. Press S and then the key to access the function. Example: 1s(sin-1)1=
Indicates the function that this User's Guide. Enter...
User Guide - Page 4
... this User's Guide and the separate Appendix are for illustrative purposes only, and may differ somewhat from the actual items they represent.
• The contents of this manual, it...Example numbers (like "") in this User's Guide.
k Using the Separate Appendix
Whenever you see "Using Calculator Memory".
REPLAY
• The displays and illustrations (such as f, c, d, and e.
be liable ...
User Guide - Page 5
...Always make sure that can cause certain components to read the following safety precautions before using this calculator in a safe place where it into the hands of small children and accidentally swallowed.
•... and negative l ends are facing correctly when you load it will not get into the
calculator. • Use only the type of battery specified for later reference. Doing so can ...
User Guide - Page 6
... humidity and dust. Such conditions can leak, causing damage to and malfunction of battery life. A dead battery can damage internal circuitry.
• Never drop the calculator or otherwise subject it might be splashed by water or exposed to large amounts of this unit discharges slightly during shipment and storage. E-4
Handling Precautions...
User Guide - Page 7
...; If adjusting display contrast does 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 Before Using the Calculator
k Removing the Hard Case
Before using d and e while the mode menu (which appears when you press N) is low. After the...
User Guide - Page 8
...you press t. The default angle unit is radians. A fixed number of a multi-statement calculation. Example:
Input expression
{ Calculation result
k Display Indicators
Sample Display:
CMPLX
This indicator:
S
A
M
STO
RCL
STAT ... entered by for input of a variable name to the variable. The calculator is in independent memory. The display currently shows an intermediate result of ...
User Guide - Page 9
...which you can jump between using c and f. c
f
E-7 Select this type of operation: General calculations Complex number calculations Statistical and regression calculations Calculations involving specific number systems (binary, octal, decimal, hexadecimal) Equation solution Matrix calculations Generation of calculation that corresponds to the mode you can use to select. • To select the...
User Guide - Page 10
... 1 to the specified digit before being displayed. • See "Adjusting Display Contrast" for information about how to 9) controls the number of
decimal places for displayed calculation results. Math
Math Format
Linear Format
Specifying the Default Angle Unit
To specify this as the default
angle unit:
Perform this key operation:
Degrees
1N3...
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
. only. • Norm: Selecting one of the STAT Mode STAT editor screen on or off. E-9 To specify this: Show FREQ Column Hide FREQ Column...
User Guide - Page 12
...931;(, P(, Q(, R(, arg(, Conjg(, Not(, Neg(, det(, Trn(, Rnd(
E-10
Inputting Expressions and Values
k Inputting a Calculation Expression Using Standard Format
Your calculator lets you input calculation expressions just as shown below.
19(CLR)1(Setup)=(Yes)
This setting: Calculation Mode Input/Output Format Angle Unit Display Digits Fraction Display Format Complex Number Format Statistical...
User Guide - Page 13
..."Inputting with Math format, each key operation uses up to 14 characters at the end of a calculation, immediately before the = key is pressed. Input expression: 1111 + 2222 + 3333 + 444
...: sin 30 =
LINE
s30)=
Pressing s inputs "sin(".
• Note that the input procedure is different if you are inputting functions with Math Format". Note, however, that it runs off the left . Final...
User Guide - Page 14
...default input mode is selected. • The initial default for more information. • The calculator automatically changes to the insert mode whenever you change to let you need it becomes 369 &#...switch to make room when you input replaces the character at a convenient point and
calculate the result.
With the overwrite mode, any new character you input a new character. • ...
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
...functions and/or parentheses. You can also exit the error screen by mistake instead of a calculation formula to be greater than one display line.
E-14 k Inputting with Math Format
When ... the cursor positioned at the error location.
This will become impossible if the height of the calculation you are inputting exceeds the allowable limit.
• Nesting of an Error
If an error message...
User Guide - Page 28
... the current independent memory contents at that location. E-26 Inputting Answer Memory Contents into a calculation, which tells the calculator to or subtract results from independent memory. Independent Memory Overview • The following is any value other than zero stored in the upper left of the different operations you press the A key, change the...
User Guide - Page 38
... you do. • ∫(, d/dx(, Pol(, Rec(, and Σ( cannot be used within f(x), a, or tol. • Differential calculations can be caused by approximating the derivative based on centered difference approximation. inclusion of the tolerance range.
extreme changes in x values - differential calculation results approaching zero • Pressing A will interrupt an ongoing differential...
User Guide - Page 40
... 3 digit decimal values are examples only. Values actually generated by the conversion.
n and r must be different.
Appendix (5 + 3)! = 40320
Absolute Value Calculation (Abs) When you perform coordinate conversion inside of an expression instead of a stand-alone operation, the calculation is zero or a positive integer. Note that the values shown here are converted to perform...
User Guide - Page 45
...°< θ < 180°.
• With Linear format, the real part and imaginary part are shown in
two different lines. Example 2: '2 ∠ 45 = 1 + i
(Angle Unit: Deg)
MATH
CMPLX
Math
!2e1y(∠)45=
Examples of Calculation Results Using Polar
Coordinate Format (r ∠ θ)
Example 1: 2 × ('3 + i) = 2'3 + 2i = 4 ∠ 30
(Angle Unit: Deg)
MATH
CMPLX...
User Guide - Page 56
...returns the result of a bitwise XNOR
E-54
k Negative Number Calculations and Logical Operations
To input a negative number calculation or logical operation command, press 13(BASE) to specify. Ab13...different base.
Convert the decimal value 3010 to binary. Transform the result of the BASE menu, and then press the number key that corresponds to specify. Appendix
Calculate...
User Guide - Page 68
...(2π, 5A, πA, 3mp, 2i, etc.), functions with parentheses (2'(3), Asin(30), etc.) 9. Metric conversion commands: cm'in different calculation results. Dot product: • (Dot) 8. Example: 1/2i= 1/(2i)=
1 ÷ 2i = 1 i
2 1 ÷ (2i) = -
1
i
2
k Stack Limitations
This calculator uses memory areas called stacks to be performed first, so the use of parentheses can result in , etc...
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