Casio CFX-9800G Owner's Manual page 11

Box Zoom Function cont'd
3. Use G&D, ®, GW, and: @ to move the pointer to the
location where you want one of the corners of the box to be.
Press (EXE) to specify the point.
X=/B5,.829'18 Y=-0.5161 Fe
4. Move the pointer to the location of the corner that you want
located-diagonally from the first corner.
#=-1839.8297 Y=0.516125: »
5. Press (EXE) fo specify the point, and the area of the graph
inside of the box enlarges to fill up the entire display.
Quick-Start XVI
Polynomial Function Graphs
The following example uses.a quadratic function to illustrate.how..
t0 produce a polynomial function graph. Note that the-procedure
consists of three parts: specifying the graph type, specifying the
range parameters for the graph, and actually drawing the graph.
Example: To draw the graph for: y = x2 + x-2.
To specify the graph type
Use the following procedure to specify rectangular coordinates for
the graph: - {s+rr) feng (£7) (REC) (=x).
To specify the range parameters
A Press (Range) and the display shown here appears. ii)
Note that the range parameter values
shown on your display may differ from.
those shown here.
init irre
2. Press C=) (5 } (EXE) to specify "Sas the minimum ;
value of the x-axis. Each time you press (EXE). in this
procedure, the highlighting moves to the next parameter.
3. Press (5) (Be) to ey 5 as the maximurn value of the
x-axis,
4. Press (41-) (4) (EXE) to pacify) 1 as the scale for the x-axis.
5. Press (i) (3) (EXE) to specify -3 as the minimum
value of the y-axis.