Texas Instruments TI-89 User Manual - Page 568

If You Have a CBL 2™ or CBR™ The Calculator-Based Laboratory™ System (CBL 2) and Calculator-Based Ranger™ System (CBR) are optional accessories, available separately, that let you collect data from a variety of real-world experiments. TI-89 Titanium, CBL 2 and CBR programs are available from the TI web site at education.ti.com. How CBL 2™ Data Is Stored When you collect data with the CBL 2, that data is initially stored in the CBL 2 unit itself. You must then retrieve the data (transfer it to the TI-89 Titanium) by using the Get command, which is described in the Technical Reference module. Although each set of retrieved data can be stored in several variable types (list, real, matrix, pic), using list variables makes it easier to perform statistical calculations. When you transfer the collected information to the TI-89 Titanium, you can specify the list variable names that you want to use. For example, you can use the CBL 2 to collect temperature data over a period of time. When you transfer the data, suppose you store: • Temperature data in a list variable called temp. • Time data in a list variable called time. After you store the CBL 2 information on the TI-89 Titanium, there are two ways to use the CBL 2 list variables. Statistics and Data Plots 568