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 farrahkidz on November 8th, 2012
Quiries
i dont know how to store here data,and the conversion and every thing about how to operate this casio 991 es,what is the difference of casio 991es and casio 991es plus? which one is more ok,coz im taking board exam and i belive that a good choice of calculator will help me.thnx and more power
Current Answers
Related Casio FX-991ES Manual Pages
User Guide - Page 4
...purposes only, and may differ somewhat from the actual items they represent.
• The contents of this product and the items that come with it . Moreover, CASIO Computer Co., Ltd.
... use of the actual key operation you want to initialize the calculator and return the calculation mode and setup to change without notice. • In no event shall CASIO Computer Co., Ltd.
Rad ...
User Guide - Page 5
... If accidentally swallowed, consult with a physician immediately.
• Never charge the battery, try to take the battery apart, or allow the battery to suddenly burst, creating the risk of small children.
... and damage nearby items, and can create the risk of it by burning it in
this calculator. Never expose the battery to direct heat or dispose of fire and personal injury.
•...
User Guide - Page 6
...calculator for the first time.
• Even if the calculator is operating normally, replace the battery at least once every three years. Such conditions can damage internal circuitry.
• Never drop the calculator... of the calculator. Very low temperatures can damage the case. Take care never to leave the calculator where it might be exposed to clean the calculator. Never use...
User Guide - Page 7
... its hard case downwards to remove it probably means that battery power is on the calculator. • Press 1A(OFF) to the back of the calculator as shown in the illustration below. Replace the battery. E-5 k Adjusting Display Contrast
1N(SETUP)c6(]CONT') This displays the contrast adjustment screen.
Important!
• If ...
User Guide - Page 8
... will unshift and this :
The keypad has been shifted by pressing the S key. There is in effect. The calculator is a value stored in the VECTOR Mode. A fixed number of significant digits is more data above/below the current screen. The display currently shows an intermediate result of a variable name to the variable. This...
User Guide - Page 9
...:
COMP CMPLX
STAT
BASE-N
EQN MATRIX
TABLE
VECTOR
(2) Press the number key that takes a long time to select. • To select the CMPLX Mode, for example, press 2. 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...
User Guide - Page 10
... and other expressions to use "]CONT'". Specifying the Input/Output Format
For this input/output format: Math Linear
Perform this key operation: 1N6(Fix)0-9 1N7(Sci)0-9 1N8(Norm)1(Norm1) or 2(Norm2)
Calculation Result Display Examples • Fix: The value you specify (from 0 to the specified digit before being displayed. • See "Adjusting...
User Guide - Page 11
...(d/c)
Specifying the Complex Number Display Format
To specify this complex Perform this key operation:
1Nc5(Disp)1(Dot) 1Nc5(Disp)2(Comma)
• The setting you configure here is always a dot ( ). The decimal point for input values is applied for calculation results
. E-9 • Norm: Selecting one of the STAT Mode STAT editor screen on...
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 the functions shown below, it .The calculator automatically judges the calculation priority sequence for addition, subtraction, multiplication, and division, functions, and parentheses. sin(, cos(, tan(, sin-1(, cos-1(, tan-1(, sinh(, cosh(, tanh(, sinh-1(, cosh-1(, tanh...
User Guide - Page 13
...(5 + 4), etc. • Before a function with Math format, each key operation uses up to the right of data for a single expression.
Displaying a Long Expression The display can omit the multiplication ... a calculation, immediately before the = key is pressed. E-11 Input expression: 1111 + 2222 + 3333 + 444
Math
Displayed portion:
Cursor
• When the ] indicator is different if you...
User Guide - Page 14
...overwrite mode is selected. • The initial default for more information. • The calculator automatically changes to the overwrite mode when you input a new character. With the overwrite ... whether you change to the insert mode whenever you have insert or overwrite selected as you know. See "Incorporating a Value into a Function" for Linear format input is selected does not...
User Guide - Page 15
...215; 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 location where you want to insert...
User Guide - Page 16
... too many functions and/or parentheses. This will become impossible if the height of the calculation you are inputting exceeds the allowable limit.
• Nesting of 14 ÷ 10 × 2 = Use the insert mode for the following operation. Example: When you press =, press d or e.
The maximum allowable height of an Error
If...
User Guide - Page 17
... Fraction Mixed Fraction log(a,b) (Logarithm) 10^x (Power of 10) e^x (Power of e) Square Root Cube Root Square, Cube Reciprocal Power Power Root Integral Derivative Σ Calculation Absolute Value Parentheses
Key Operation ' 1'(() & 1l($) 1i(%) ! 1!(#) w, 1w(x3) E 6 16(") 7 17(F) 1&(8) 1w(Abs) ( or )
Bytes 9 13 6 4 4 4 9 4 5 4 9 8 6 8 4 1
Math Format Input Examples • The following...
User Guide - Page 18
... When you press = and obtain a calculation result using Math format, you can incorporate part of the cursor as shown in the above procedure, and the required key operations to use them.
Example: To incorporate ...can be used in the Example 3 screen shot.
Original Expression:
Function Key Operation Resulting Expression
Fraction
'
log(a,b) Power Root
& 16(")
E-16 Math
!
The...
User Guide - Page 19
... = 3'2
MATH
Math
1
!2e+!8=
Math
2
!2e+!81=
E-17 For details, see "Using S-D Transformation".
Note
• When "LineIO" is selected for S-D conversion. Original Expression:
Function Key Operation
Integral
7
Resulting Expression
Derivative
17(F)
Σ Calculation 1&(8)
You can also incorporate values into the following functions. 1l($), 1i(%), !, 6, 1!(#), 1w(Abs)
Displaying...
User Guide - Page 26
... mode or the input/output format, or perform any reset operation.
• Calculation history memory is deleted automatically to back-step through calculation history memory contents.
Example:
LINE
1+1= 2+2= 3+3=
f
f
• Note that support calculation history memory: COMP (N1), CMPLX (N2), BASE-N (N4)
Recalling Calculation History Memory Contents Press f to make room for the...
User Guide - Page 27
.... Answer Memory can use memory.
The "M" display indicator indicates data in Answer Memory. If you can hold up to demonstrate how...calculation using any one . Independent Memory
Calculation results can be added to perform the second calculation immediately after pressing A, press the G key. Using Calculator Memory
Memory Name
Description
Answer Memory Stores the last calculation...
User Guide - Page 54
...
+
B X
Calculation Formula
Appendix Comparison of Regression Curves • The following example uses the data input in the ...take a long
time to execute in each regression type, refer to the indicated calculation formulas
( Appendix to ). E-52 Base-n Calculations
(BASE-N)
The BASE-N Mode lets you perform arithmetic calculations, negative value calculations, and logical operations...
User Guide - Page 74
... this happens, press the O key to turn off automatically if you perform the above key operation.
1 Press 1A(OFF) to turn the calculator back on. Do not skip it in place with its screw.
6 Perform the following key operation: O19(CLR)3(All)=(Yes). • Make sure you do not accidentally turn on one...
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