manual

Using the Scratchpad 23
• Create a persistent point that remains on the graph by pressing
· when the trace point reaches the point you want to label.
The point remains after you exit Graph Trace mode.
Notes:
• The string undef is displayed instead of a value when you move
over a point that is not defined for the function (a discontinuity).
• When you trace beyond the initially visible graph, the screen pans
to show the area being traced.
4. Press
d or choose another tool to exit Graph Trace.
Finding Points of Interest
You can use the tools on the Analyze Graph menu to find a point of
interest in a specified range of any graphed function. Choose a tool to
find zero, the minimum or maximum, the point of intersection or
inflection, or the numeric derivative (dy/dx) or Integral on the graph.
1. Select the point of interest that you want to find on the
Analyze
Graph
menu. For example, to find a zero, press b61..
The icon for the selected tool displays at the top left on the work
area. Point to the icon to view a tooltip about how to use the selected
tool.
2. Click the graph you want to search for the point of interest, and then
click a second time to indicate where to start the search for the point.
non-CAS CAS
Zero
b61 b61
Minimum
b62 b62
Maximum
b63 b63
Intersection
b64 b64
Inflection Not applicable
b65
dy/dx
b65 b66
Integral
b66 b67
Analyze Conics
b67 b68