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Solution 11827: Calculating the Determinant of a Matrix Using the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.

...s? The instructions below will show users how to find the determinant of a matrix using the TI-89 Titanium, TI-92 family and Voyage™ 200. Example: What is the determinate of matrix b? Solution: Enter the matrix in the Data/Matrix Editor. 1) Press [APPS] [6] [3] (If Apps Desktop is on, press...
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Solution 12171: Use of the Angle( Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

...s? The angle( functions returns the angle, list, or matrix of angles of an expression, list or matrix, interpreting each element as a complex number that represent a two-dimensional rectangular coordinate point.The syntax is:angle(expression).angle(list).angle(matrix)Examples:• In Degree mode,ang...
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Solution 11826: Calculating nth Power and Roots Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

...ess [( ] [(-)] and enter 27. 2) Press [ )] [^] [( ] and enter 1. 3) Press  [÷], enter 3, and press [ )] [ENTER]. The screen will display -3. OS 3.10 has a built in root function. The steps provided below can also be used for the TI-89 Titanium or Voyage 200 with OS 3.10 or higher to calculate th...
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Solution 16532: Graphing a Partial Sum of a Sequence on a TI-89 Family, TI-92 Family or Voyage™ 200 Graphing Calculator.

...the sequence 1/(x^2) with a low of 1 and a high of 10. 1) Press [♦] [Y=].2) Press [2ND] [MATH] [B:Calculus].3) Choose 4: ∑( sum.4) Enter [1][ [÷] [ALPHA] [A] [^] [2] [,] [ALPHA] [A] [,][ 1] [,] [X] [)].Please Note: On the TI-92 family and Voyage 200, the ALPHA function does not have to be used si...
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Solution 12170: Using the "and" Operator on TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

...0 will return 4.Integers can be entered in any number base. For a binary or hexadecimal entry, the prefix 0b or 0h must be used.If a decimal integer that is too for a signed, 32-bit binary form is entered, a symmetric modulo operation is used to bring the value into the appropriate range.The and ...
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Solution 16189: Creating a 3D Graph of a Surface On a TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculator.

...mily, TI-92 family, or Voyage 200 graphing calculator: Example: Graph z=y^2-x^2 1) Press [MODE] in 'Graph' select 5:3D then press [ENTER] [ENTER] to change the mode to 3D. 2) Press [♦][Y=]. 3) Input the equation [y][^][2][-][x][^][2] in z1. 4) Press [♦][GRAPH]. The graph can be viewed at differen...
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Solution 12165: The cFactor() function on The TI-89 Family, TI-92 Plus, and Voyage™ 200 Graphing Calculators.

... the MATH/Algebra/Complex menu. The syntax for the cFactor function is cFactor(expression1[,var]) cFactor(list1[,var]) cFactor(matrix1[,var) Note: What is inside the [] is optional. When used without precising the variable, the cFactor(expression1) returns the expression1 factored with respect...
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Solution 15468: Unlocking a Program on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.

...rs by following the steps listed below. • Press [2nd] [-] to access the VAR-LINK menu.• Scroll through the VAR-LINK screen and highlight the program that needs to be unlocked.• With the name of the program highlighted, press [F1] [7].The lock symbol should now be removed from the name of the prog...
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Solution 11818: Algebra Problem Identities for 00 using the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.

...g the TI-89 family, TI-92 family, or Voyage 200? While this was considered a domain error on TI-85, TI-83, and TI-82, there are a number of reasons that algebra problems are handled reasonably with the identity 00=1. 1. Apply the binomial theorem: 00 = (1-1)0 = binomial(0,0) * 10 * (-1)0 = 1. ...
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Solution 12134: Using Strings on the TI-89 Family, TI-92 Family, and Voyage™ 200.

...se Knowledge Base Search How are strings used on the TI-89 Family, TI-92 Family, and Voyage 200? Strings are a sequence of characters enclosed in "quotes". Strings are used to enter and display text characters. Strings can be entered directly or stored to a string variab...
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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.

..., TI-92 family, or Voyage 200? To calculate a maximum or minimum of a function, access the Math menu after graphing a function. Then, from the menu that appears, select the calculation to be performed. The example below will demonstrate how to find a maximum of a function. Please Note: The funct...
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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.

... is better to use to display the graph as converging to an equilibrium point or veering off into space.• CUSTOM: The custom format is used to create phase plots to see how one sequence affects another sequence.Please see the TI-89 Titanium or Voyage 200 guidebooks for additional information. Sol...
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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.

...PS] 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 [ENTER] [ENTER]. • Input the X list into c1 and the Y list into c2. • Using the arrow keys, highlight the nam...
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Solution 15463: Finding the Amplitude of Periodic Function on the TI-89 Titanium and Voyage™ 200 Graphing Calculators.

... Base Knowledge Base Search How do I find the amplitude of a periodic function? The amplitude of a periodic function is one-half the difference between the largest possible value of the function and the smallest possible value. For example, for y= sin(x), the largest pos...
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Solution 11813: Using Local Variables in Functions or Programs on the TI-89 Family, TI-92 Plus, and Voyage™ 200.

...wledge Base Search How can I use a local variable on the TI-89 family, TI-92 Plus, or Voyage 200? A local variable is a temporary variable that exists only while a user-defined function is being evaluated or a user-defined program is running. As often as possible, use local variables fo...
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Solution 12093: Displaying Asymptotes on the TI-89 Family, TI-92 Plus, and Voyage™ 200 Graphing Calculators.

...2)/(x+3) graphed in the window xMin= -9 and xMax=6.8 will not display the connecting line or "asymptote". In this example, the x range is chosen so that one of the "plotted" points corresponds exactly to x = -3 (which happens to be a simple pole)- One may see this via the trace [F3] feature on t...
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Solution 11805: Negative Exponents of Zero Return Inconsistent Answers on the TI-89 Family, TI-92 Family and Voyage™ 200.

...d negative exponents and infinity for even negative exponents for a base of zero. Functions of the form 1/(x-a)^(odd power), for real x and real a, have an odd-order pole at x = a. The sign changes as x crosses the pole, and limit(1/(x-a)^(odd power),x,a) = undef (the limit from the right has d...
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Solution 15346: Graphing 2D Implicit Functions on the TI-89 Titanium, TI-92 Plus, and Voyage™ 200.

...How can I graph a function in implicit form on the TI-89 Titanium or Voyage 200? In 2D function graphing mode, it is not possible to graph functions that have an implicit form f(x,y)=g(x,y). For example, the functionx^2+.5y^2=30 is a implicit function. Only equations having an explicit form y=f(x...
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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.

... top or bottom of 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...
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Solution 15320: Performing Order of Magnitude on the TI-86 Graphing Calculator.

... order of magnitude of a number can be defined in terms of the decimal logarithm, usually as the integer part of the logarithm.For example, 4,000,000 has a logarithm of 6.602. Its order of magnitude is 6.To find the decimal logarithm (or log) of a number:• Press [LOG], input the value and press [...
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Solution 12091: Creating a Histogram Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

...ll in the following options. • Press [ENTER] [ENTER] to save these settings.• Press [diamond key] [GRAPH] to view the graph. It may be necessary to change the current viewing window by pressing [F2] [9] for a ZoomData fit. Note:  What do if I get the error message "Plot Setup" when setting up a...
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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.

...terest rate to positive values when solving the Time Value of Money equation for the interest rate, and it is also helpful to restrict it to be less than some generously large number for a realistic interest rate. Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for additional ...
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Solution 12090: Creating a Box Plot using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

... [1] [2] [ENTER].  5) Press [►] [▲] [▲] [▲] [▲]. 6) Press [4] [ENTER] [1] [ENTER] [5] [ENTER] [2]. 7) Press [F2] [F1]. 8) Press [►] [3] [▼] [C] [ALPHA] [1] [▼] [►] [2] [▼] [ALPHA] [C] [2]. Please note that users with TI-92 family or Voyage 200 graphing calculators may omit pressing [ALPHA] in t...
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Solution 11795: Using the deSolve() Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

...ily, TI-92 family, and Voyage 200. The syntax for deSolve() is: deSolve(ODE,independentvar,dependentvar) The deSolve function returns an equations that explicitly or implicitly specifies the general solution to the 1st or 2nd ordinary differential equation (ODE). Example:  1) Go to the home ...
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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.

...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 entered is not a integer. The TI-89, TI-89 Titanium, TI-92 Plus, and Voyage 200 cannot convert a decimal number (ex. 2.9) to a...
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