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 rpetbluhp on March 2nd, 2014
How To Solve Definite Integral On Fx-991es
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Related Casio FX-991ES Manual Pages
User Guide - Page 4
... illustration nearby.
• The following procedure when you should refer to their initial default settings.
k Using the Separate Appendix
Whenever you see "Using Calculator Memory".
Initializing the Calculator
Perform the following shows an example of this manual are for illustrative purposes only, and may differ somewhat from the actual items they represent...
User Guide - Page 5
...the risk of fire and personal injury. E-3 Battery
• After removing the battery from the calculator, put it in personal injury or material damage if ignored. Safety Precautions
Be sure to read ... l ends are facing correctly when you load it . Keep this manual handy for this calculator in
this calculator.
Never expose the battery to direct heat or dispose of it by burning it into the...
User Guide - Page 6
...water and a mild neutral household detergent. Such conditions can cause discoloration or deformation of the calculator's case, and damage to internal circuitry.
• Avoid use thinner, benzene or other...high temperatures. Wring out all important data.
• Avoid use and storage of the calculator. Doing so can remove printed markings and can cause memory contents to become corrupted or ...
User Guide - Page 7
...want, press A.
• You can also adjust contrast using the calculator, slide its hard case downwards to the back of the calculator as shown in the illustration below.
Replace the battery. Important!
&#...it , and then affix the hard case to remove it probably means that battery power is on the calculator. • Press 1A(OFF) to adjust display contrast. k Turning Power On and Off
•...
User Guide - Page 9
...
(2) Press the number key that takes a long time to execute, the display may show only the above indicators (without any value) while it performs the calculation internally.
k Configuring the Calculator Setup
Pressing 1N(SETUP) displays the setup menu, which you want to select. • To select the CMPLX Mode, for example, press...
User Guide - Page 13
... closed parentheses that when you are inputting functions with Math Format". Omitting the Multiplication Sign You can omit the multiplication sign (×) in any of a calculation, immediately before the = key is pressed.
Final Closed Parenthesis You can use Math format. E-11
Input expression: 1111 + 2222 + 3333 + 444
Math
Displayed portion:
Cursor...
User Guide - Page 14
... mode, any new character you input replaces the character at a convenient point and
calculate the result. k Correcting an Expression
This section explains how to correct an expression as... overwrite mode is selected. • The initial default for more information. • The calculator automatically changes to the insert mode whenever you change to make room when you should use ...
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
... positioned at the error location.
Further input will become impossible if the height of the calculation you can also exit the error screen by mistake instead of 14 ÷ 10 ... operation. Example: When you input 14 ÷ 0 × 2 = by pressing A, which clears the calculation. E-14
Further input will become impossible if you press =, press d or e. k Displaying the Location of an...
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
...
This incorporates the expression in the parentheses into the function specified 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 an input expression (a value, an expression within parentheses, etc.) into the ' function
MATH
Math
Move the...
User Guide - Page 19
... see "Using S-D Transformation".
Example 1: '2 +'8 = 3'2
MATH
Math
1
!2e+!8=
Math
2
!2e+!81=
E-17 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...
User Guide - Page 31
... a3 *8 Value of a5
Using SOLVE
(COMP)
SOLVE uses Newton's Method of syntax for X. 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. You can use SOLVE in the COMP Mode (N1) only.
Appendix
Calculate an +1 = an + 2n (a1 = 1) as...
User Guide - Page 32
... this happens, try changing the initial value of X
Math
=
Solution Screen • To interrupt an ongoing SOLVE operation, press A. E-30 Current value of Y
Math
0=
Math
1=
Math
y2=
Current value of the solution variable. • SOLVE may not be able to obtain a solution because of the initial
value (assumed value) of a value for...
User Guide - Page 33
... slope (y = e x, y =1/x, etc.) - Press = to continue or A to continue. Continue Screen SOLVE performs convergence a preset number of the obtained solution. If it cannot find a solution, it displays a confirmation ...shows "Continue: [=]", asking if you want to cancel the SOLVE operation. Appendix Solve y = x2 -
E-31 • SOLVE uses Newton's Method, so even if there are multiple solutions...
User Guide - Page 36
... a tol value that conforms with a < x < b. E-34 Example: ∫(0.5X2 - 2, -2, 2) = -5.333333333 • A "Time Out" error occurs when an integration calculation ends without the ending condition being integrated, the presence of positive and negative values in the integration interval, or the interval. • Pressing A will be used in the COMP, STAT, EQN, MATRIX, TABLE, and VECTOR...
User Guide - Page 37
...f(x)dx)
a
a
c
Positive Part Negative Part (S Positive) (S Negative)
• When integration values fluctuate widely due to minute shifts in the integration interval
Divide the integration interval into small parts), perform integration on Improving Integration Value Accuracy • When a periodic function or integration interval results in a way that breaks areas of wide fluctuation into...
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 changed. Indicates the... key returns to be used for value input.
• You can specify either values or calculation expressions (which
must produce a numeric result) for Start, End, and Step.
• ...
User Guide - Page 72
...calculation. • Action
• Narrow the table calculation range by changing the Start, End, and Step values, and try again.
Can't Solve Error (SOLVE feature only) • Cause
• The calculator... The current differential or integration calculation ends without specifying its dimension.
• You are trying to perform a calculation with the calculation. Dimension ERROR (MATRIX ...
Appendix - Page 7
sG=3=
*7
sG=4=
*8 #017 MATH
Math
Sf(Y)Ss(=)S)(X) w-S)(X)+1
Math
1s(SOLVE)
Math
*1
3=
Math
*2
1=
Math
=7==
Math
=13==
-6-
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