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Solution 11818: Algebra Problem Identities for 00 using the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.

...empty collection of ones, or an empty collection of twos, etc. Therefore, 00 = 10 = 20 = x0 = 1. Finally, note that limits are not relevant to the discussion. Since the function f(x,y) = xy has an essential discontinuity at (0,0), no choice of f(0,0) will make the function continuous there. That...
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Solution 11815: Finding a Maximum or Minimum of a Function on a TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculator.

... cursor to the left of the vertex, or by directly inputting a value. 9) Press [ENTER].The value of the maximum (the vertex) is then displayed on the screen. The steps above are the same used when calculating minimums, zeros, inflections, and intersections. Please see the TI-89 family, TI-92 fam...
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Solution 12096: Graphing a Step Function on the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.

...example below will demonstrate how to graph a step function on these calculators. Example: Graph the greatest integer of Y=X 1) Go to the Y= editor screen by pressing the [GREEN DIAMOND][W]. (Use [GREEN DIAMOND] [F1] on the TI-89 Family). 2) Access the catalog by pressing [2nd] [2] (on the TI-8...
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Solution 15464: Definition of Time, Web, and Custom Settings for Axes When Graphing Sequences on the TI-89 Titanium and Voyage™ 200.

...ase Search When is it best to use the Axes Mode setting when graphing sequences on the TI-89 Titanium or Voyage™ 200? Please see the below descriptions:• TIME: The time format for graphing sequences graphs the sequences as a function of the independent variable n by graphing the points (...
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Solution 11814: Sorting Columns in a Data, List, or Matrix Variable Using the TI-89 Family, TI-92 Plus, or Voyage™ 200.

...top is active, press [APPS] and select the "Data/Matrix Editor". If the Apps Desktop is not active, press [APPS] and select "6:Data/Matrix Editor". • Scroll down to "3:New" and press [ENTER]. • Scroll down to "Variable:", type in a variable name using the alpha characters (e.g. test1) and press [...
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Solution 12095: Finding Limits with Direction on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

... [3:limit(]. From the left: limit(x/(x-3),x,3,-1) (-1 was arbitrarily chosen to specify the left direction. Any negative number can be used.) The screen will show the - infinity symbol. From the right: limit(x/(x-3),x,3,1) (Choose any positive number.) The screen will show the positive in...
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Solution 15462: Integrating Lower and Upper Bounds of a Function on the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.

...egrate an equation with lower and upper bounds such as e^(X^2) where the lower bound is 0 and the upper bound is 1 complete these steps:• On the HOME screen press [F3]• Scroll down to the second option, 2:S( integrate, press [ENTER]• Enter the equation by pressing [diamond key] [e^] [(] [X] [^] [...
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Solution 12093: Displaying Asymptotes on the TI-89 Family, TI-92 Plus, and Voyage™ 200 Graphing Calculators.

... display asymptotes. The graph application plots a series of points, separated by the number of pixels specified in the "xres" variable on the window screen. As successive points are drawn, they are joined by a line. If two successive points lie on either side of a discontinuity, they will be joi...
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Solution 11803: Viewing the Top or Bottom of a Large Matrix Result on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

...a large matrix result on the TI-89 Family, TI-92 Family, and Voyage 200 Graphing Calculators? To view a portion of a large matrix that is off of the screen, follow the steps provided below. • Press the up arrow so that the visible part of the matrix is highlighted. • Press and hold the shift ke...
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Solution 12091: Creating a Histogram Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

...ss [5] [ENTER] [8] [ENTER] etc. • Enter the numbers for the frequencies under c2. Graph the Histogram • Press F2 (Plot Setup).• Press F1 (Define).• A screen will now show the dialog box with the stat plot options. Fill in the following options. • Press [ENTER] [ENTER] to save these settings.• Pr...
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Solution 11835: Decreasing the Calculation Time Needed for the nSolve() Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

...ne the equation in the following form:                         :myeqn ()            :Func            : ... = …            :EndFunc • Then on the home screen enter an expression such as: nSolve (myeqn(), x)  Also, using the "with" operator to appropriately constrain the search range can greatly sp...
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Solution 15300: Calculating Factorials on the TI-85 and TI-86 Graphing Calculators.

...te factorials on a TI-85 or TI-86 graphing calculator. Example: Compute 5! • Enter 5 and press [2nd] [F2].• Press [F1] and [ENTER] for the result.The screen should display 120.Please see the TI-85 and TI-86 guidebooks for additional information. Solution 15300: Calculating Factorials on the TI-8...
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Solution 11795: Using the deSolve() Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

...s that explicitly or implicitly specifies the general solution to the 1st or 2nd ordinary differential equation (ODE). Example:  1) Go to the home screen, press [HOME] on the TI-89 family and [♦] [Q] on the TI-92 family and Voyage 200. 2) Press [F3] and select C:deSolve( 3) Input the expressio...
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Solution 12088: Correcting a "Domain Error" when Performing Number Base Conversions on the TI-89 Family, TI-92 Plus and Voyage™ 200 Graphing Calculators.

...If the calculator is set to APPROXIMATE, it will return a Domain error when performing a base conversion.  To check the mode setting:• Press [MODE].• Scroll  down to the Exact/Approx setting. • Press the right arrow key.•  Select EXACT or AUTO. Another possibility is that the number being entere...
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Solution 11842: Algorithm Used for Symbolic Integration Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

...amily, TI-92 family and Voyage 200? Antiderivatives are determined by substitutions, integration by parts, and partial-fraction expansion, much as described by J. Moses in "Symbolic Integration: The Stormy Decade", Communications of the ACM, August 1971, Volume 14, Number 8, pp. 548-559. Antider...
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Solution 14485: Modifying the History Area on the TI-89 Titanium and Voyage™ 200 Graphing Calculators.

...ors? There are three main modifications that can be done to the history area: 1. Changing the number of pairs that are saved: 1) From the Calc Home screen, press [F1] and select 9:Format or press the green diamond key followed by the [|] key. 2) Press the right arrow key. 3) Use the up or down ...
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Solution 12087: Clock Will Not Display on a TI-89 or TI-92 Plus Graphing Calculator with Operating System (OS) 2.08 or Above.

...-89 and TI-92 Plus (or TI-92 with a Plus Module) with hardware version 1. To determine if a calculator has a hardware version 1 unit: • On the Home Screen, with custom menus disabled, press [F1], and choose option A for About... • The About screen will list either hardware version 1 or hardwar...
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Solution 14292: Performing Hyperbolic Cosecant, Cotangent and Cosine Functions on the TI-89 Family, TI-92 Plus and Voyage™ 200.

...functions can be found in the CATALOG menu of the TI-89 family, TI-92 Plus and Voyage 200. The syntax for these functions are: hyperbolic cosecant= csch(expression) hyperbolic cotangent= coth(expression) hyperbolic cosine= cosh(expression) Please refer to the examples provided below. Example 1: ...
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Solution 12085: Apps Icon Desktop Setting and Clock Functionality for the TI-89 or TI-92 Plus.

...09, adds the ease of the icon Apps desktop and clock functionality of the Voyage™ 200. Please note that the clock will only work on units whose About screens read Hardware Version 2.00. The About screen may be found by accessing the calculator's Home screen then pressing F1 Tools, and choosing A:...
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Solution 14289: Backing Up the Memory of a TI-73 Family Calculator by Saving to Another TI-73 Family Model.

...nk SEND menu, press [2] to select Quit. When the backup is complete, both the sending calculator and the receiving calculator display a confirmation screen. If a transmission error occurs during a backup, the receiving calculator’s memory is reset. Please see the TI-73 family guidebook for addit...
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Solution 12057: Fraction to Decimal Conversions on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

... conversion keys. However, conversions can still be performed on these calculators. To convert a decimal number to a fraction: 1) Press [MODE]. 2) Scroll down to Exact/Approx. 3) Choose Exact to convert to fraction form . 4) Input a decimal number and press [ENTER]. To convert a proper or imp...
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Solution 12061: Calculating Logs on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

...ion on the TI-89 family, TI-92 family, and Voyage 200 is located in the [CATALOG] menu. To access this function: • Press [CATALOG] [L]. • Scroll to log( , press [ENTER]. • Input the value. • Close the parentheses and press [ENTER]. The 3.10 OS for the TI-89 Titanium and V...
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Solution 12054: Finding the Curl of a Vector Field on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

...HA] [q] [ENTER]. 13) Press [Z] [STO►] [ALPHA] [r] [ENTER]. Please Note: X*Y*Z is just an example expression. Feel free to use whatever expressions describe the vector field in question. 14) Press [2ND] [ALPHA] [c] [u] [r] [l] [ALPHA]. 15) Press [(] [X] [,] [Y] [,] [Z] [)] [ENTER]. 16) Press [▲]...
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Solution 12075: Viewing the Data Collected with the Calculator-Based Ranger™ (CBR™) and the Ranger Program on the TI-89 Family Calculators.

...he Calculator-Based Ranger (CBR) in the Ranger program on the TI-89 family calculators: • After the graph is displayed, press [ENTER]. • On the menu screen that appears, select 4. Main Menu. • On the Main Menu, select 6: QUIT. The calculator will display where the different data is located: L1 ...
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Solution 12059: Implicit Partial Differentiation on the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.

...nd. This command should be used when computing a implicit partial differentiation. To access the command, press [F3] [Up Arrow] [Enter] on the homescreen. For example, to solve the equation x^2+y^2=0, enter impdif(x^2+y^2=0, x, y) and press [ENTER]. If you are using the TI-89, the impdif( ...
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