Solution 12650: Calculating Trigonometric Functions on the TI-81.
...mation. Please Note: The TI-81 has been discontinued. When upgrading, consider the TI-84 Plus CE graphing calculator. It is ideal for algebra, geometry, statistics, finance, and many other classes. The TI-84 Plus CE has an upgradeable operating system, several included Apps, a rechargeable batte...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12650
Solution 10425: Finding the Absolute Value or Argument of a Complex Number on the TI-86.
... find the absolute value or argument of a complex number on the TI-86? The example below shows how to find the absolute value (argument) of an imaginary number. Example: Find the absolute value of 53-22i Solution: • Press [2nd][MODE] • Scroll down to PolarC and press [ENTER] • Press [2nd][MAT...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10425
Solution 12645: Graphing a Function on the TI-80 and TI-81.
...n discontinued. When upgrading, consider the TI-73 Explorer™. The TI-73 Explorer is completely compatible with curricular materials for upper elementary through lower middle grades, from fractions through pre-algebra. Follow these steps to graph a function using the TI-80 or TI-81: • Press [Y=].•...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12645
Solution 10417: Calculating Two-Variable Statistics on the TI-86
...] [STAT]. 2) Press [F2] to select Edit. 3) Enter the data in the xStat and yStat lists. (Note: a frequency list, fStat, can be used to save data entry time. For this example, the frequency of each answer is 1, so clear the fStat list and leave it blank.) 4) Press [2nd] [QUIT] to leave the edi...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10417
Solution 12217: Locked Variables Are Not Displayed in Open Dialog Box Choices on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculator.
...se of locked variables on the TI-89 family, TI-92 family and Voyage 200 is to keep the variable from being edited. All of the editors (Program, Geometry, Data/Matrix, Text) change the variable directly in memory (the editors do not work on a copy of the variable, but the variable itself). To edit...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12217
Solution 11832: Correcting an "Undefined Variable" Error on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
... [6] (MEM) [F1] [ENTER]. 2) Select 2:Default. 3) Press [ENTER] and Defaults Set is displayed. 4) Press [ENTER]. Once the defaults have been reset, try the problem again. Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for additional information. Solution 11832: Correcting a...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11832
Solution 11831: Correcting an Address Error on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...yage 200 calculators. Please Note: The following procedures will completely reset the calculator. Please, bear in mind that this will erase the memory of the calculator and restore all manufacturer's defaults. On the TI-89 family: 1) Hold down the following keys [2nd] [] (right and left arro...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11831
Solution 14243: Drawing a Pictograph On The TI-73 Explorer™.
...TS menu by pressing [2nd][PLOT] • Define as a Pictograph by pressing 1 [ENTER] • Select the diagram representing a pictograph • Make sure the category and Data list are properly listed as City and Dist • Set the scale at 500 • Select Vert for vertical • Press [GRAPH] to display the stat plots ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/14243
Solution 12172: Using the Ans() function on the TI-89 Titanium and Voyage™ 200 Graphing Calculators.
... the ans() function on the TI-89 Titanium and Voyage 200 graphing calculators? The ans() function returns a previous answer from the Home screen history area.If an integer is used as an argument, it will specify which answer to recall. The valid range of integer that can be used is 1 to 99 and ca...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12172
Solution 11826: Calculating nth Power and Roots Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...S 3.10 or higher to calculate the cube root of 27. 1) From the HOME screen, press [GREEN DIAMOND] [9] and the root( function will populate in the entry line. 2) Input 27, press [,] and enter 3. 3) Press [)] [ENTER]. The screen will display 3. Please Note: It is necessary to put parentheses aroun...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11826
Solution 12170: Using the "and" Operator on TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...nd operator is primarily used to compare two Boolean expressions, lists, or matrices and returns true, false, or a simplified form of the original entry. When used with integers, the and operator compares them bit-by-bit using an and operation. Internally, both integers are converted to signed, 3...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12170
Solution 11818: Algebra Problem Identities for 00 using the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.
...asonably with the identity 00=1. 1. Apply the binomial theorem: 00 = (1-1)0 = binomial(0,0) * 10 * (-1)0 = 1. 2. Apply the definition from set theory. If a and b are nonnegative integers, let A and B be sets having cardinality a and b, respectively. Then the value of ab is the cardinality of t...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11818
Solution 11815: Finding a Maximum or Minimum of a Function on a TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculator.
...ctually have a maximum or minimum in order for it to be calculated. To find the maximum of the function -X2+X+6: 1) Press [◊] [Y=]. 2) In an open entry line, press [(-)] [X] [^] [2] [+] [X] [+] [6]. 3) Press [◊] [GRAPH]. 4) Press [F5] [4]. 5) Specify the lower bound for xc by either moving the...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11815
Solution 11814: Sorting Columns in a Data, List, or Matrix Variable Using the TI-89 Family, TI-92 Plus, or Voyage™ 200.
...ly a single column would destroy the relationship between the columns. Follow the procedure below to sort the entire database: X list = {beth, ann, gary} Y list = {sims, mead, smith} Z list = {24, 17, 28} • Access the Data/Matrix Editor. If the Apps Desktop is active, press [APPS] and select the...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11814
Solution 11813: Using Local Variables in Functions or Programs on the TI-89 Family, TI-92 Plus, and Voyage™ 200.
... Knowledge 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...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11813
Solution 15346: Graphing 2D Implicit Functions on the TI-89 Titanium, TI-92 Plus, and Voyage™ 200.
...ay the graph. Notes: • Graphing implicit functions this way takes a long time. • Change the format style to WIRE FRAME if the function is taking a very long time to graph. • It is not possible to trace an implicit plot. For additional instructions, refer to the online guidebook for your calculat...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/15346
Solution 12092: Creating a Scatter Plot Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...l to Variable: and type in a name. 3) Press [ENTER] two times. Enter X and Y values: 1) Under c1 enter the X values, press [ENTER] after each entry. 2) Under c2 enter the Y values, press [ENTER] after each entry. Graph the data: 1) Press [F2]. 2) Press [F1]. 3) Select plot type (use scatt...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12092
Solution 12091: Creating a Histogram Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...ons. Fill 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 setti...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12091
Solution 11835: Decreasing the Calculation Time Needed for the nSolve() Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...nSolve (myeqn(), x) Also, using the "with" operator to appropriately constrain the search range can greatly speed the solution. For example, it is very important to restrict the interest rate to positive values when solving the Time Value of Money equation for the interest rate, and it is also h...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11835
Solution 11795: Using the deSolve() Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...dentvar,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 screen, press [HOME] on the TI-89 family and [♦] [Q] on the TI-92 family and Voyage ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11795
Solution 12058: Fractions with the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...ion. Use propFrac() function to return an improper fraction as a mixed number, which is accessed by pressing [2nd][MATH][9][7]. Please Note: Before trying the examples below, enter the [MODE] menu and change the Exact/Approximate setting to Exact. Examples: Calculate 3/4 + 7/5 (Answer: 43/20)...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12058
Solution 11806: Creating and Evaluating User-Defined Functions on the TI-89 Family, TI-92 Family and Voyage™ 200.
...Store an expression to a function name, including the argument list. Example: To define the function xpower(x,y)=x^2+y^2 1) Input x^2+y^2 in the entry line. 2) Press the [STO->] key. 3) Input xpower(x,y). 4) Press [ENTER]. The message "Done" Will display. 5) Try xroot(3,4) and press [ENTER]. Th...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11806
Solution 12066: Performing Number Base Conversions on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...Press [2nd] [MATH] [ALPHA] [E] [3] (the screen will show 44>Hex). 3) Press [ENTER] to display the results. Example 2: Convert 44 from Decimal to Binary Solution: 1) Input 44. 2) Press [2nd] [MATH] [ALPHA] [E] [4] (the screen will show 44>Bin). 3) Press [ENTER] to display the results. Example 3...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12066
Solution 12136: Factoring an Expression on the TI-89 Family and Voyage 200 Graphing Calculators.
...itted between x and y, the calculator will consider xy to be one variable, not "x times y".3) To factor functions which may result in complex (imaginary) solutions, use the cfactor() command located under the MATH/Algebra/Complex menu.Please see the TI-89 Titanium / Voyage 200 guidebook for addit...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12136
Solution 11869: Performing Unit Conversions On The TI-89 Family,TI-92 Family, and Voyage™ 200 Graphing Calculators.
...rt units on the TI-89 family,TI-92 family, and Voyage 200 graphing calculators? It is possible to convert from one unit to another in the same category, including user-defined units. For example, to convert 4 light years to kilometers: • Enter 4 • Press [2nd][3] to access the UNITS menu (On V...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11869