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Texas Instruments TI-89 Titanium Manual
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Texas Instruments TI-89 Titanium Manual

Scientific calculator
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Using a Scientific Calculator

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Summary of Contents for Texas Instruments TI-89 Titanium

  • Page 1 Using a Scientific Calculator...
  • Page 2 Hardware on the TI-89 • How much memory does the TI 89 have? • The TI-89 has 188k of RAM and 384k of memory that can be used for archiving programs, making a total memory of 572k • How large is the TI-89's screen? •...
  • Page 3 The TI-89, like the TI-92 and TI-92 Plus, uses a 68k Motorola processor. • The processors are 10 MHz. • On TI-89 Titanium they are 12 MHz. • You can double the speed of the TI-89 by over clocking. •...
  • Page 4 • Step 1 Type in the number you wish to convert. Then press the blue 2nd key followed by the blue Units key (the #3 on your keypad). • Step 2 A list will pop up. Scroll down to select the category for your unit, then use the 2nd Key right arrow key and the down/up keys to make your selection.
  • Page 5 • Step 1 Input a decimal you wish to see as a fraction such as: • Step 2 Hit MODE and scroll down to Exact/Approx and hit Exact. The screen will come back to your home screen and the number you wanted to change to fraction will be in the input bar.
  • Page 6 • Step 1 Input fraction in home input bar. • Step 2 Hit MODE and scroll down to Exact/Approx and hit Approx. The screen will come back to your home screen and the number you wanted to convert to decimal will be in the input bar.
  • Page 7 There are 3 different modes in the TI 89 calculator. • The first one is Normal this means that: 34.2 + 34.5 68.7 • The next selectable mode is Scientific. This means that: 34.2 + 34.5 6.87e1 • The last mode is Engineering. This means that: 34.2 + 34.5 68.7e0...
  • Page 8 • Step 1 Go into your MODE and scroll down until you reach Exact/Approx and change it to Exact. • Step 2 Type in what you would like to convert to binary such as 455 in the address box at the bottom of the main screen. •...
  • Page 9 This function will allow you to solve for a specific variable. For example, solve for: 3x^3-2x*y+3y=2 • Step 1 On your home screen press F2 and then press 1 or enter. • Step 2 Enter in the equation after solve as: solve(3x^3-2x*y+3y=2,y) •...
  • Page 10 Like the solve function, you can use the matrix function to solve for a system of equations. For example: 3x-5y=4 and -2x+5y=6 • Step 1 Press 2 5(MATH), 4(Matrix), and then 5(simult). • Step 2 Enter the coefficients as a matrix and the results as a constant column matrix as so: simult([3,-5;-2,5],[4;6]) •...
  • Page 11 Factoring Example: Factor x^2-6x+5 • Step 1 On your home screen press F2 and then press 2. • Step 2 Enter in the expression as so: factor(x^2-6x+5). • Step 3 Press enter. The solution comes up as two expressions. Complex Factoring Example: x^2+1 •...
  • Page 12 Working with Graphs Zoom Menu Using ZoomBox Start with a function that we can graph: X^3-(x/4) • Step 1 To get to the “Y=” screen from the home screen, press F1 and the “Y=“ screen will appear. • Step 2 Enter in the function as : Y= X^3-(x/4) •...
  • Page 13 Working with Graphs Zoom Menu (cont.) ZoomSqr: This application will redraw the graph by adjusting xmin and xmax so that the tic marks are equal in distance on both axes. This is useful when you need to see an accurate shape, such as a circle.
  • Page 14 The command that will let you solve first and second order differential equations is deSolve. First order example: y’= y+x^2 • Step 1 To enter in deSolve, press F3. Continue down until you reach “C:deSolve.” • Press enter and it will appear on the home screen. •...
  • Page 15 Using this command will allow you to find the zeros of any function, so long as they exist. Example: Y = x^4-4x^2 • Step1 Press 2 then MATH (button #5). Next scroll down to the algebra tab in the calculator or press (button #9). •...
  • Page 16 Factoring and expanded form are two methods used in all levels of algebra and calculus. Factoring : y= x^3-16x^2-4x+64 • Step 1 Press 2 then MATH (button #5). Scroll down to the algebra tab in the calculator or press button #2. •...
  • Page 17 Polar format is the vector form with an angle in degrees. In engineering it determines the values of capacitive reactance and inductive reactance. Example: Y = 400 + 500j (Note: engineers use j instead of i as the imaginary number, but it is i on the calculator) •...
  • Page 18 A with polar, rectangular form is giving the dimensions of a vector, but by breaking the vector into two parts a y component and an x component. Y = 35 at an angle of 30 degrees • Step 1 Change the mode to rectangular output by going into the mode menu and scroll down to the complex vector and press enter then choose rectangle •...
  • Page 19 • Step 1 Make sure that your equation is in Y intercept form. • For example: Y=5X-3 • Step 2 Press the yellow button then press F1. Then insert your equation and press enter. • Step 3 Press the yellow button then press F3.
  • Page 20 Option 1 Press the yellow button and F2. Manually input the values. • Make sure that Xmin < Xmax and Ymin< Ymax Option 2 Press yellow button then press F3. After that press F2 and a menu pops up. • If you want your window to standard mode press 6.
  • Page 21 • Step 1 Type in your equation in the y1= section. • Step 2 Graph your function. • Step 3 Press F5 then 2. • Step 4 Go to the left of the X-axis and press enter then go to the right of the X-axis and press enter.
  • Page 22 • Step 1 Graph a parabola • Step 2 Press F5 then choose minimum or maximum • Step 3 Go to the left, then to the right of the minimum or maximum. • Press enter. • Go to the right of it and press enter. •...
  • Page 23 • Step 1 Enter the first equation in y1= and the second equation in y2= • Step 2 Graph the equations. • Step 3 Press F5 then press 5. • Then press enter 2 times. • Intersection Go to the left of the intersecting point and press enter.
  • Page 24 • Step 1 Type in your function • Step 2 Press F5 then press 7 • Step 3 Look for the lower value • Press enter • Look for the greater value • Press enter.
  • Page 25 • TI-89 Titanium / Voyage™ 200 Guidebook • Using the TI-89 Graphing Calculator • Software, OS Updates and Apps...