HP 49g Graphing Calculator - Manual (Page 88)

Plot setup parameters
Type
EQ
Indep
Depnd
The angle imits field indicates the miits in which angular
arguments are to be interpreted; degrees, radians, or
gradians.
The equation or list of equations you want to plot.
The name of one of the independent variables.
The name of the second independent variable.
The type of plot (namely, slopefield).
Wireframe plots
A wireframe plot draws an oblique, 3-D plot of a wireframe model of a
surface determined by Z =
F(pc, y).
An example is =
:x^ - xip.
The plot drawn is the surface of the model as viewed from a specified
vantage point. This vantage point is called the
eyepoint.
The surface
plotted is that within a region in 3-dimensional space—called the view
volume—detennined by ranges on each of the three coordinate axes.
A wireframe plot needs two inputs to generate an output. The HP 49G
uses a two-dimensional
sampling grid
of points whose coordinates
provide the two inputs required. By default, the sampling grid consist of
80 points: 10 columirs by 8 rows.
The following example is a wireframe plot of z = .
HiriDCiH - HIREFRflHE^^^ PLOT SETUP
Y-Far: 1.
Z-L oh : -i. Z-Hi3h: 1.
YE:-Z.
Z Z - 0 .
E4:Zi(K^Y?
Step Iri
Iri
Efiter HiniHUM M i.une uol ClK'Oie type oF put
Figure 4-17: Default plot window and plot setup parameters for wireframe plots
Figure 4-18: Sample wireframe plot
Page 4-20 Plotting graphs