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Chapter 4: Graphing Features
G SHADE
2 INITIAL
78
With these sub-menu tools, inequalities, intersections and
compliments of multiple graphs can be visualized.
Sets up the shading area for each graph.
1 SET
Initializes the shading setup, and brings up the shading
setup window.
Example
To access the DRAW menu, press @ d.
An inequation can be expressed with the calculator's graphing
capability. Here's how:
1. Set up a simple graph within the Graph Equation window.
Enter "X
2
" for Y1, for example.
2. Press @, and d to enter the DRAW menu, then press
G to select G SHADE. The SHADE sub-menu appears.
3. Press 1 to select 1 SET. The
"Set shade" window appears.
4. Using the cursor keys, move the
cursor pointer to the appropriate
position.
5. Press + or - to set Y1 on the left side of "Y".
6. Press the G key. The graph will
be redrawn.
7. Let's add another inequation, so
that the area where the two inequal-
ity overlap can be shaded. Press
the Y key, and enter another
simple graph equation such as "X
8. Now, return to the SHADE menu by pressing @ d,
and G. Press 1 to select "1 SET".
9. Within the "Set shade" window, add the second equation at the
right of the topmost inequation. Use the ' or ; key to
position the underscore cursor, then select "Y2" using +
or - key.
10. Press the G to redraw the graph with the new shading
appearance.
+
4" for "Y2".
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