Solution 12651: Clearing the Memory on the TI-81.
... Search How is the memory cleared and reset the TI-81? To clear the memory and reset the TI-81, press the [2nd] key and then the [+] key. A screen will be displayed with the options to reset the graphing calculator or return to the home screen. This screen will also show the amount of a...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12651
Solution 10431: Finding the Zero, Minimum, or Maximum of a Function on the TI-85 or TI-86.
...or which the root is being computed by pressing the up or down arrow. The number of the graph selected will be display in the top right corner of the screen. 3) Specify the left bound for x by either moving the trace cursor to the left of the root or by directly inputting a value and pressing [...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10431
Solution 13323: Using the RandMat() Function on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...9 of the specified dimension. Reference the example provided below. Ex. Create a random generated matrix with 3 rows and 3 columns. • From the HOME screen press [2ND] [MATH] • Select 7:Probability and 7:randMat( • Press [3] [,] [3] and [ENTER] to display the matrix solution For additional ins...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13323
Solution 12650: Calculating Trigonometric Functions on the TI-81.
...s changes the mode from a default of radian to degree for the measurement of angles. 3) Press the [2nd] key and the [CLEAR] key to return to the home screen. 4) Sin of 30 degrees is equal to (.5) in degrees to enter this press the [SIN] key and then enter 30. 5) Next press the [ENTER] key. 6) Cos...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.
...hows 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][MATH] • Press [F1] • Press [F5] • Input after abs (53, -22) and press [ENTER] The answer is 5...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10425
Solution 12649: Calculating One-variable Statistics on the TI-81.
... How do I calculate one-variable statistics on the TI-81? Data for this example: x={87, 52, 97, 46, 75, 60} • Clear the screen then press [2nd] [MATRX] • Press the right-arrow key twice and press [ENTER] • The cursor will display after the x1 = • Enter the x-values a...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12649
Solution 12648: Calculating Linear Regressions on the TI-81.
...he TI-81: Data for this example:xStat: {1,4,8,10}yStat: {7,9,15,18} Enter the data into the TI-81:1) Enter STAT edit mode by pressing [2nd] [STAT].2) Scroll to DATA.3) Press [1].4) Enter the data as x-y coordinates 1 [ENTER] 7 [ENTER] 4 [ENTER] 9 [ENTER] 8 [ENTER] etc.5) Press [2nd][QUIT] to leav...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12648
Solution 13180: Sharing Applications Between the TI-89 Family Graphing Calculators.
...r that will be receiving the App: 1) Press [2ND] [VAR-LINK] [F3] to access the link menu. 2) Select option 2:Receive and the bottom of the calculator screen will display VAR-LINK: WAITING TO RECIEVE BUSY. On the calculator that will be sending the App: 1) Press [2ND] [VAR-LINK] to access the link...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13180
Solution 12645: Graphing a Function on the TI-80 and TI-81.
... Knowledge Base Knowledge Base Search How can I graph functions using the TI-80 or TI-81? The TI-80 has been discontinued. When upgrading, consider the TI-73 Explorer™. The TI-73 Explorer is completely compatible with curricular materials for upper elementar...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12645
Solution 10417: Calculating Two-Variable Statistics on the TI-86
...4) Press [2nd] [QUIT] to leave the editor.Calculate the statistical variables:1) Press [2nd] [STAT] [F1] [F2]; the function TwoVar will appear on the screen. 2) Press [2nd] [LIST] [F3] to see the list names in the menu. 3) Select xStat [,] yStat [ENTER] the screen will now show the two variable s...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10417
Solution 13062: Solving a System of Equations on the TI-89 Family, TI-92 Plus, and Voyage™ 200 Using the Gauss-Jordan method.
...reduced row echelon form:• Press [HOME].• Press [2ND] [MATH] [4] [ALPHA] [J] [2].* Note: You can quickly access the command by pressing [CATALOG] and scrolling down to find it.• Press [ALPHA] [B] [ALPHA] [B] [,] [2] [,] [1] [)].• Press [STO►] [ALPHA] [B] [ALPHA] [B].• Press [ENTER].• Press [2ND] ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13062
Solution 10424: Degree, Minutes, Seconds (DMS) Conversions with the TI-85 or TI-86.
...r that is written in decimal degrees to DMS, use the [>DMS] function, found in the MATH, ANGLE menu. To convert an answer that is displayed on the screen in DMS format to decimal degrees, press [2nd] [ANS] [ENTER]. Below is an example of how to add numbers in DMS format.Please see the TI-86 g...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10424
Solution 12183: Deleting Files from the Text Editor on the TI-89 Family, TI-92 Plus and Voyage™ 200.
... below to delete Text files from the TI-89 family, TI-92 family and Voyage 200 graphing calculators.• Press [2nd] [-] (to access the Var-Link menu).• Scroll to the name of the text file to be deleted.• Press [←] (the backspace key, not the left arrow key) to delete the file.• Press [ENTER] to con...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12183
Solution 12177: Using the ZoomBox, ZoomIn, and ZoomOut Tools to Explore a Graph on the TI-89 Family, the TI-92 Family, and the Voyage™ 200.
...F2]Zoom menu offers several tools for adjusting the viewing window. The Zoom menu can be accessed from the Y= Editor, the Window Editor, or the Graph screen.1. ZoomBox: Draw a box and zoom in on that box.For example, to use the ZoomBox tool on the graph of the function 2*sin(x):• Graph the functi...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12177
Solution 14243: Drawing a Pictograph On The TI-73 Explorer™.
...ow do I draw a pictograph on my TI-73 Explorer? The TI-73 Explorer can display no more than seven pictograph icons for up to seven categories on the screen. If the scale is not big enough (the Data List is broken up by more than seven icons) the calculator will display an INVALID DIM error. Plea...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/14243
Solution 11830: Correcting a Window Variables Domain Error on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
... the window values to resolve this error. Refer to the instructions below. • Press [♦][WINDOW] • Input the following values: xmin = -10 xmax = 10 xscl = 1 ymin = -10 ymax = 10 yscl = 1 xres = 2 • Now graph the expression. Please see the TI-89 family, TI-92 family and Voyage 200 guidebook...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11830
Solution 14291: Performing Cosecant, Cotangent and Cosine Functions on the TI-89 Family, TI-92 Plus and Voyage™ 200.
...and cosine 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: cosecant= csc(expression) cotangent= cot(expression) cosine= cos(expression) Please refer to the examples provided below: Example 1: Inputting cos(60)will ret...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/14291
Solution 12172: Using the Ans() function on the TI-89 Titanium and Voyage™ 200 Graphing Calculators.
...How do I use 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 ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12172
Solution 11827: Calculating the Determinant of a Matrix Using the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...or the Variable: and the dimensions are both 3. 3) Press [ENTER] twice. 4) Input the values that are above in the data matrix editor. Go to the home screen and input det(b). Press [ENTER] for the solution. Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for additional infor...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11827
Solution 11826: Calculating nth Power and Roots Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...d below. Example: Find the cube root of 27 1) Enter 27 and press [^]. 2) Press [(] and enter 1. 3) Press [÷], enter 3 and press [ )] [ENTER]. The screen will display 3. Example: Find the cube root of -27 1) Press [( ] [(-)] and enter 27. 2) Press [ )] [^] [( ] and enter 1. 3) Press [÷], ent...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11826
Solution 16510: How To draw a vertical line on a TI-86.
...line to where you want it. • Press [ENTER]. • To enter another line just move the arrow keys and press [ENTER]. The second option: • On the home screen press [2ND] [CATLG-VARS]. • Select CATLG by pressing [F1]. • Scroll to the VERT command and press [ENTER]. • Enter the X value and press ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/16510
Solution 11825: Axes do not Appear on the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.
...hing. The axes need to be turned on: 1) Press [♦] [F3] (On the TI-92 family and Voyage 200, press [♦] [R]). 2) Press [F1:Tools] [9:Format]. 3) Scroll to the Axes menu and choose ON. 4) Press [ENTER]. The axes should now appear when graphing. Please see the TI-89 family, TI-92 family a...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11825
Solution 11819: Algorithm for Solving Systems of Equations on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...s. For linear or polynomial systems, the Gaussian or Groebner elimination method is used to seek all solutions. Otherwise, a damped-Newton/steepest-descent method is used to seek an approximate solution close to the entered guess, which defaults to 0.0 for each component. Solution 11819: Algorit...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11819
Solution 12138: Font and Size of Characters Used on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...r™). It is called Ti92Pluspc on the computer. On the calculator, most of the characters are 5 pixels wide by 7 pixels high in the body of the display screen. The small font in the toolbar and status line has a variable width. Those digits are mostly 3 pixels wide by 5 pixels high. For additional ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12138
Solution 15468: Unlocking a Program on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...ked on the TI-89 Family, TI-92 Family and Voyage 200 calculators 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].T...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/15468