Click on the TI-Graph Link icon below, then download the program falldata, and run it to load the falling pillow data described in your browser window to your TI-92 for analysis. Run the program by entering falldata() and pressing ENTER in your home screen.
The program creates two lists -- L1 containing the time at which each measurement was made -- and L2 containing the distance measurements.
After cooldata has set up these lists you can analyze this data using the TI-92 table and graph features in the usual way. Make sure that the graphics mode is set to SEQUENCE. You may want to look at the help files for graphing a sequence or making a table for a sequence.
The screen below shows how the Y= screen should be set up to produce a table showing this data.
The screen below shows this data in a table.
The screen below shows how the Y= screen should be set up to produce a graph showing this data. Notice the only difference between this screen and the Y= screen above is that the u1 list has been turned off.
You will also need to set up the window screen with appropriate ranges for the axes to produce a graph like the one below.
You can work with the data supplied above or, better yet, you can work with data that you have collected yourself.
The screen below shows a typical velocity estimate.
