Vernier Data Pro - Manual (Page 34)

Data Pro 32
Tap to graph the collected data and overlay a graph of a general
equation whose variables can be adjusted.
The equation you choose may use the parameters A, B, C, and D as a
function of x. Enter values in the parameters and tap OK to view the modeled
graph.
THE QUIT OPTION
Tap to leave Data Pro and return to the applications screen of the Palm. Tapping
will delete any unsaved data and setup, so that the next time Data Pro is launched an auto-ID
attempt will take place.