HP 48G User Manual
Page 78
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Plot Type and Description
Example
Wii'eframe
Plots a perspective, wireframe
view of tlie surface determined by
a
function of two
variables.
(Shown:
F
=
— 4 . / ’ ] /
+
y ^ )
HP 48 Plot Types (continued)
Pseudo-Contour
For a function.
F { x , y ) ,
plots a
lattice of line segments that are
each tangent to a contour of the
function (a curve
satisfying
{/(^constant). This allows
your
e y e
to pick out tlie contours
without actually plotting them.
(Shown:
F
= (,r" — l)/(j/' ^1))
Y-SUce
Plots a. series of cross-sections of
the surface determined by the
current function of two variables
and can create an animation of
them to help you visualize a
moving slice through the surface.
,-.4
— 4.1‘";!/■' + !/■*
(Shown:
F
Gridmap
Plots a rectilinear grid as it is
“distorted” under the mapping of
a complex-valued function
{ F ( x
-h
i f / ) ) .
(Shown:
F
= sin
( x
-|-
i y ) )
Parametric-Surface
Plots a perspective, wireframe
model of a parametrized surface
( F ( u , f ) =
x ( u , v ) i
-f
y (
U ,
v ) j
+
c(
ti,
tt)k).
(Shown:
x ( u , v ) ~
sin .3.c
+ \ y \
i . i
1-
i
y { u , v \
V ) =
C0S.3.C.)
6-12 Plotting Equations and Analyzing Graphs