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32 Using the Scratchpad
Selecting Part of an Expression
You can delete, cut, or copy a selected part of an expression.
1. Press ¡, ¢, £, or ¤ to move the cursor to a starting point in the expression.
2. Press and hold g and press ¡, ¢, £, or ¤ to select.
- To delete the selection, press ..
- To cut the selection to the Clipboard, press / X.
- To copy the selection to the Clipboard, press / C.
- To paste the selection to a new entry line in Scratchpad, press / V.
Graphing with the Scratchpad
1. Press » to open the ScratchpadGraph page if it is not already open.
By default, the entry line is displayed. The entry line displays the required
format for typing a relation. The default graph type is Function, so the form
f1 ( x )= is displayed.
If the entry line is not shown, press Ctrl + G or press b 2 3 to display
the entry line and type an expression to graph.
2. Press b > Graph Entry/Edit and select a graph type.
For example:
• To graph an equation for a circle, press b > Graph Entry/Edit >
Equation > Circle > (x-h)
2
+ (y-k)
2
= r
2
or press b 3 2 3 1. Fill
in the equation and press · to draw the circle.
• To graph a function, press b > Graph Entry/Edit > Function or press
b 3 1.
The entry line changes to display the expression format for the specified
graph type. You can specify multiple relations of each graph type.
3. Type an expression and any other parameters required for the graph type.
4. Press · to graph the relation, or press ¤ to add another relation. If
necessary, you can use press b 4 to choose a tool on the
Window/Zoom menu and adjust the viewing area.