"How To" Information for TI-83/84 Calculators

Times (in minutes and seconds) are shown for each video.  Controls for each video are directly below the calculator screenshot. For more information about any of these topics, see your instructor.

As you watch these videos, follow the cursor (the white arrow) to see which buttons are pressed on the calculator.

• General tasks
  • Editing expressions (2:29) - inserting and deleting characters; recalling earlier command lines
  • Using the result (ANS) of the last computation (1:41)
  • Evaluating functions from the homescreen (2:11)
  • Accessing functions from menus (3:16) - absolute value, roots, hyperbolic trig functions
  • Secant, cosecant, and cotangent functions (0:50)
  • Deleting programs (0:46)
  • Interrupting a calculation or graphing operation
• Graphing
  • Drawing the graph of a function (1:50)
  • Changing the viewing window (3:47)
  • Zooming in or out on a graph (2:39)
  • Tracing along a graph (3:04)
  • Finding roots and points of intersection (2:41)
  • Changing a graph style (2:53)
  • Drawing graphs of polar equations (2:08)
  • Drawing graphs of parametric equations (2:26)
  • Drawing graphs where x is a function of y (2:21)
• Making a table of function values (3:04)
• Working with data
  • Creating lists of data, and clearing lists (1:55)
  • Creating scatterplots (2:16)
  • Finding and plotting a regression curve (2:13)
  • Finding the correlation coefficient (1:53)
• Calculus
  • Approximating a derivative (2:07)
  • Approximating a definite integral (2:10)
• Programs
  • Programming AAAOWNER (video - 3:19; written instructions)
  • Programming QUADFORM (video - 7:24; written instructions)
  • Running QUADFORM (2:21)
• Troubleshooting
  • I get an "Invalid Dim" or "Dim Mismatch" error message. (1:43)
  • Some of my graphs don't plot, or I press "trace" and don't see the cursor. (1:21)
  • One of my lists is missing. (0:47)
  • The values of trig functions are wrong, or their graphs are wrong. (0:53)
  • The "X, T, ..." button gives the wrong symbol, or the Y = list has the wrong format. (1:39)
  • My graph looks squashed. (1:08)
  • My result contains the letter "E". (1:12)
  • An extra graph appears when I press "graph". (0:52)
  • My calculator always returns the same number of decimal places. (1:01)
  • My Y = window has inequality symbols along the bottom (0:39)
  • The graph of my data doesn't show up when I press "graph". (2:16)
  • My graph contains extra vertical lines.
  • My graph or table of values for a rational function is wrong.