HP 49g Graphing Calculator - Manual (Page 81)

Conic plots
Conic plots are plots of conic sections. The equation for a conic section is
a polynomial of second degree or less for both
x
and
y.
An example is
5,i” + 3 v ^ - 1 8 = 0 .
^^^F-LOT HinDOH
H—Mn €.5
3.2
Indip LOH: Hiah:Default
Default .Pixels
Enter HiniHUH harisoFital value
BBi BBS B2iSi ESBZI
^ ' FLOT SETUPS
Type ■ :i:Pad
EQ:C1»:K^VJ
Irii^ep:« Depn'j:Y ¿Connect
H-TiCh:lD. V-TiCh:lD. ¿Pixels
Chaase type of plat
Figure 4-9: Default plot window and plot setup parameters for conic plots
/
Figure 4-10: Sample conic plot
Plot window parameters
H-View
V-View
Low
High
Step
Pixels
The horizontal display range, with the minimum
horizontal value in the first field and maximum horizontal
value in the second field.
The vertical display range, with the minimum vertical
value in the first field and maximum vertical value in the
second field.
The smallest value of the independent variable that you
want plotted.
The greatest value of the independent variable that you
want plotted.
Determines the resolution of the plot. It is the horizontal
distance—in imits or pixels—between two plotted points.
Larger step sizes provide speedier plots, but show less
detail. Smaller step sizes provide more detail but take
longer to draw. See also PIXBILS below.
When this field is checked, the
step
value is measured in
pixels. Wlren unchecked—which is the default setting—
tire step value is measured in units.
Plotting graphs Page 4-13