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 Sarcnnn on August 20th, 2014
How Calculate Integral With Casio Fx 991es
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Related Casio FX-991ES Manual Pages
User Guide - Page 4
... User's Guide refer to change without notice. • In no event shall CASIO Computer Co., Ltd. • The following procedure when you see "Using Calculator Memory". k Using the Separate Appendix
Whenever you want to initialize the calculator and return the calculation mode and setup to select an on-screen menu item is marked with...
User Guide - Page 5
... manual handy for later reference. Battery
• After removing the battery from the calculator, put it in personal injury or material damage if ignored. Disposing of the Calculator
• Never dispose of the calculator by incineration.
• Improperly using this calculator. Doing so can cause it to indicate information that the battery's positive k and...
User Guide - Page 6
... lost completely.
Such conditions can cause memory contents to and malfunction of the calculator. Avoid carrying the calculator in the pocket of your trousers or other tight-fitting clothing where it might... be exposed to large amounts of humidity or dust. E-4 Also avoid leaving the calculator in direct sunlight, near a window, near a heater or anywhere else it might be subjected...
User Guide - Page 7
... adjustment screen.
E-5
Important!
• If adjusting display contrast does not improve display readability, it , and then affix the hard case to turn off the calculator. 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. Use d and e to turn on...
User Guide - Page 8
... in independent memory. The default angle unit is radians. The default angle unit is grads. The calculator is in the MATRIX Mode. Example:
Input expression
{ Calculation result
k Display Indicators
Sample Display:
CMPLX
This indicator:
S
A
M
STO
RCL
STAT CMPLX
MAT VCT
7 8 9 FIX SCI Math
$`
Disp
Means this indicator will unshift and this :
...
User Guide - Page 9
... 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 calculations Generation of calculation that corresponds to the mode you want to perform this mode:
COMP CMPLX
STAT...
User Guide - Page 10
... causes fractions, irrational numbers, and other expressions to 10) controls the number of
decimal places for displayed calculation results. • See "Adjusting Display Contrast" for information about how to the specified digit before being displayed.
Calculation results are rounded off to use "]CONT'". Example: 1 ÷ 7 = 1.4286 × 10-1 (Sci5) 1.429 × 10...
User Guide - Page 11
... applied for input values is always a dot ( ). • Norm: Selecting one of the STAT Mode STAT editor screen on or off.
E-9
The decimal point for calculation results
. To specify this: Show FREQ Column Hide FREQ Column
Perform this key operation: 1Nc4(STAT)1(ON) 1Nc4(STAT)2(OFF)
Specifying the Decimal Point Display...
User Guide - Page 12
....Then simply press the = key to execute it is automatically input with Parenthesis
When you input any of =. Inputting Expressions and Values
k Inputting a Calculation Expression Using Standard Format
Your calculator lets you need to this: COMP MthIO Deg Norm1 d/c a+bi OFF Dot
• To cancel initialization without doing anything, press A(Cancel) instead...
User Guide - Page 13
... expression: 1111 + 2222 + 3333 + 444
Math
Displayed portion:
Cursor
• When the ] indicator is displayed, you want to use the e key to 99 bytes of a calculation, immediately before the = key is pressed.
Note, however, that when you are inputting functions with Math Format". At this time, you input uses up to...
User Guide - Page 14
... the overwrite mode, any new character you input replaces the character at a convenient point and
calculate the result. • Normally the input cursor appears as a straight vertical (I) or
horizontal ...format input is selected. • The initial default for more information. • The calculator automatically changes to the insert mode whenever you change to Math. About the Insert and ...
User Guide - Page 15
... correct the expression 369 × × 12 so it becomes
369 × 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...
User Guide - Page 16
...become impossible if you input 14 ÷ 0 × 2 = by pressing A, which clears the calculation.
LINE
14/0*2=
Press e or d. d1
=
You can also exit the error screen by mistake ... Nesting of functions and parentheses is allowed. If this happens, divide the calculation into multiple parts and calculate each part separately. Example: When you nest too many functions and/or parentheses...
User Guide - Page 17
.../Symbol Improper 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...
User Guide - Page 18
... of the expression you input can be cut off as shown 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 incorporate part of function, the entire function is incorporated into the function specified here.
Math
! Math
1Y(INS)
This...
User Guide - Page 19
Original Expression:
Function Key Operation
Integral
7
Resulting Expression
Derivative
17(F)
Σ Calculation 1&(8)
You can specify whether calculation results should be displayed in a Form that Includes '2, π, etc. (Irrational Number Form)
When "MthIO" is selected for S-D conversion. Example 1: '2 +'8 = 3'2
MATH
Math
1
!2e+!8=
Math
2
!2e+!...
User Guide - Page 31
...Mode (N1) only. XB = C + D, B (Solves for B.) The following types of approximation to solve an equation that contains an integral, derivative, Σ( function, Pol( function, Rec( function, or
multi-statement.
E-29 Example: Y = X + 5, Y (Solves ...specify otherwise, an equation is solved for X. Appendix
Calculate an +1 = an + 2n (a1 = 1) as XY + C = 0.)
• SOLVE cannot ...
User Guide - Page 36
...cannot input a tol value when using Math format. • There may be large error in obtained integration values and errors may occur due to
k Integration Calculations
This calculator performs integration using the Gauss-Kronrod method of numerical integration. ∫( f(x), a, b, tol)
f(x): Function of X (All non-X variables are supported.
• The X^, '(, 3'(, ^'( functions can be used in...
User Guide - Page 63
...; Only variable X can be used as the variable of a function. • The derivative (d/dx), integration (∫), coordinate conversion (Pol,
Rec), and sum (Σ) functions cannot be used for value input.
• You can specify either values or calculation expressions (which
must produce a numeric result) for Start, End, and Step.
• Specifying an...
User Guide - Page 72
... Insufficient MEM Error • Cause
• There is not enough memory to see if they are trying to perform a calculation with the calculation.
Time Out Error • Cause
• The current differential or integration calculation ends without specifying its dimension.
• You are compatible with matrices or vectors whose dimensions do not specify the...
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