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 enginiertalha on January 3rd, 2015
Integration By Parts
hi ! I am solving question of fourier series and i have casio ES570. The question is that we have to integrate by parts (e^-.5t)*(cos2nt) and limits are from 0 to pi. Here (t) is variable and n is number of pulses . N shuould remain same at the end of answer because i want to put different values of n and check the number of pulses. How could i solve with this calculator????? Plz reply as soon as possible. Regards: Engineer Talha Ikram
Current Answers
Answer #1: Posted by waelsaidani1 on January 4th, 2015 5:33 PM
waelsaidani1
Member since:
May 12th, 2013 Points: 19,501,777
Member since:
May 12th, 2013 Points: 19,501,777
Related Casio FX-991ES Manual Pages
User Guide - Page 3
...and then the key to access the applicable function.
Note that this is not part of how an alternate function operation is represented in green brackets)
It means this...performs the alternate function of the alternate function key text mean. Enter the CMPLX Mode to input the applicable variable, constant, or symbol.
Press S and then the key to access the function. Enter the BASE-N Mode...
User Guide - Page 4
...the angle unit. Note that is selected by any kind whatsoever by the number key operation (1) before it . REPLAY
• The displays and illustrations...you perform.
• The cursor key is not part of this product and the items that come with four...the marks in the Appendix.
Moreover, CASIO Computer Co., Ltd. Initializing the Calculator
Perform the following shows an example of...
User Guide - Page 13
...part...Before a variable name, constant, or random number:
20 ...× A, 2 × π, 2 × i, etc.
Omitting the Multiplication Sign You can omit the multiplication sign (×) in any of Input Characters (Bytes) • You can show up to the left of the expression, indicating that come at a time.
At this time, the ] indicator appears to 99 bytes of a calculation...
User Guide - Page 16
...limit.
• Nesting of functions and parentheses is allowed.
Further input will become impossible if the height of the calculation you input 14 ÷ 0 × 2 = by pressing A, which clears the calculation.
The maximum allowable height of a calculation...make necessary corrections. Further input will display the part of the calculation where the error occurred, with Math format, ...
User Guide - Page 17
... Format Input
• The "Bytes" column shows the number of bytes of memory that are all performed while Math format 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($) 1i...
User Guide - Page 18
...into the function specified here. Incorporating a Value into a Function When using Math format, part of the expression you input can be used in the Example 3 screen shot.
Original ...
(1+'2c5e)
w*2=
• When you press = and obtain a calculation result using Math format, you can incorporate part of an input expression (a value, an expression within parentheses, etc.) into a function.
User Guide - Page 19
...see "Using S-D Transformation". Original Expression:
Function Key Operation
Integral
7
Resulting Expression
Derivative
17(F)
Σ Calculation 1&(8)
You can also incorporate values into the following functions. 1l($), 1i(%), !, 6, 1!(#), 1w(Abs)
Displaying Calculation Results in a Form that Includes '2, π, etc. (Irrational Number Form)
When "MthIO" is selected for the input/output...
User Guide - Page 20
... ȊxȊ < 9 × 109
ȊxȊ < 20π
ȊxȊ < 10000
Calculation results may be
displayed. Results that includes ' within irrational number display) results can have up to both the real part and the imaginary part. k ' Form Calculation Range
Note
When performing complex number calculations in decimal form for input values outside of the above ranges.
CMPLX...
User Guide - Page 23
...Integer Part
Denominator
Numerator
(7'3)
(2'1'3)
• Under initial default settings, fractions are displayed as improper fractions.
• Fraction calculation ...results are always reduced before being displayed.
Appendix -2 + -1 = -7
326 3 -1 + 1 -2 = 4 - 11 (Fraction Display Format: ab/c)
4 3 12
4 - 3 -1 = -1 (Fraction Display Format: ab/c) 22
• If the total number...
User Guide - Page 27
...The "M" display indicator indicates data in Answer Memory. Variables
Six variables named A, B, C, D, X, and Y can hold up to 15 digits.
• Answer Memory contents are not change the calculation mode, or turn off the calculator.
• If a CMPLX Mode calculation produces a complex number result, both the real part and imaginary part are stored in independent memory. E-25 Independent...
User Guide - Page 31
... the following shows the syntax for each one variable,
an input prompt appears for the log function. Appendix
Calculate an +1 = an + 2n (a1 = 1) as XY + C = 0.)
• SOLVE cannot be used to solve an equation. 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...
User Guide - Page 36
... Rad as complex numbers are treated as constants.)
a: Integration interval lower limit b: Integration interval upper limit tol: Tolerance range (input/output format: Linear) • You can take more time.
Appendix to
k Integration Calculations
This calculator performs integration using Math format. • There may occur due to the type of X (All non-X variables are not used if...
User Guide - Page 37
... minute shifts in the integration interval
Divide the integration interval into multiple parts (in a way that breaks areas of wide fluctuation into small parts), perform integration on Improving Integration Value Accuracy • When a periodic function or integration interval results in positive
and negative f(x) function values
Perform separate integrations for each part, and then combine the...
User Guide - Page 45
... end of the calculation.
12(CMPLX)3('r∠ θ )
Appendix 1 + i (= '2 ∠ 45) = 1.414213562 ∠ 45
k Conjugate Complex Number (Conjg)
You can use the following operation to obtain a conjugate complex number. 12(CMPLX)2(Conjg)
Appendix Determine the conjugate of -180°< θ < 180°. E-43 • With Linear format, the real part and imaginary part are shown...
User Guide - Page 48
... maximum number of input are already used.
Statistical
Display
OFF
Statistic Type
(No FREQ column)
Single-variable
80 lines
Paired-variable
40 lines
ON (FREQ column)
40 lines 26 lines
• The following types of lines allowed for the STAT editor screen are not allowed on the calculator's setup screen. You cannot edit parts of...
User Guide - Page 55
...a fractional value, the decimal part is always decimal (DEC). The key markings used . Key
Number Base
U
Decimal
c
Hexadecimal
b
Binary
q
Octal
Screen Indicator Dec Hex Bin Oct
• The current number base setting is indicated in the BASE-N Mode.
Positive: 00000000 < x < 7FFFFFFF decimal Negative: 80000000 < x < FFFFFFFF
• The allowable calculation range is narrower from...
User Guide - Page 63
... 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 End value that the number table generation...
User Guide - Page 66
... + VctB (Vector Addition) 3 × VctA (Vector Scalar Multiplication)
VctB - 3 × VctA (Calculation example using VctAns) VctA • VctB (Vector Dot Product) VctA × VctB (Vector Cross Product) ...of VctC. Input the two-digit number that corresponds to both A and B = (A × B) A × B
Scientific Constants
Your calculator comes with 40 built-in constants that...
User Guide - Page 71
... error message appeared.
For more parts. Math ERROR
• Cause • The intermediate or final result of the calculation you are performing.
Argument ERROR
• Cause • There is within the allowable range for the function. E-69 When an error message appears... Note that the memory or variable value is a problem with the...
User Guide - Page 72
... you input as the solution variable. Can't Solve Error (SOLVE feature only) • Cause
• The calculator could not obtain a solution. • Action
• Check for the matrices or vectors to the expected solution
and try again. Time Out Error • Cause
• The current differential or integration calculation ends without specifying its dimension.
• You...
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