Texas Instruments TI-Nspire CX Manual download pdf (Page 30)

24 Using the Scratchpad

The second click marks the lower bound of the search region and a

dotted line displays.

Note: If you are finding the derivative (dy/dx), click the graph at the

point (numeric value) to use for finding the derivative.

3. Press

¡ or ¢ to move the dotted line that marks the search region, and

then click the point at which you want to stop the search (upper

bound of the search region).

4. Press

· at the point to start the search. The tool shades the range.

If the search region you specified includes the point of interest, a

label for the point displays. If you change a graph that has points of

interest identified, be sure to check for changes in points of interest.

For example, if you edit the function on the entry line or manipulate

a plot, the point where the graph intersects zero can change.

The labeled points of interest remain visible on the graph. You can

exit the tool by pressing

d or choosing another tool.

Working with Variables in the Scratchpad

Scratchpad variables are shared between Scratchpad Calculate and

Scratchpad Graph, but not with any TI-Nspire™ documents. If you use the

same name for a Scratchpad variable and a variable in a document, no

conflict occurs unless you attempt to copy expressions between

documents and the Scratchpad.

Saving the Scratchpad Contents

You can save the Scratchpad Calculate page, the Scratchpad Graph page,

or both as a TI-Nspire™ document.

1. Press

~, and then select Save to Document (~A).

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Texas Instruments TI-Nspire CX Manual Page 30