Texas Instruments Voyage 200 User Manual page 350

Variable Description
tstep Increment for the t value. Parametric equations are
evaluated at:
x(tmin)
x(tmin+tstep)
x(tmin+2(tstep))
... not to exceed ...
x(tmax)
xmin, xmax, Boundaries of the viewing window.
ymin, ymax
xscl, yscl Distance between tick marks on the x and y axes.
Standard values (set when you select
tmin = 0
(6.2831853... radians
tmax = 2 p
or 360 degrees)
(.1308996... radians
tstep = p /24
or 7.5 degrees)
You may need to change the standard values for the
ensure that enough points are plotted.
Exploring a Graph Exploring a Graph Exploring a Graph Exploring a Graph
As in function graphing, you can explore a graph by using the following tools.
Parametric Graphing
y(tmin)
y(tmin+tstep)
y(tmin+2(tstep))
... not to exceed ...
y(tmax)
from the „
6:ZoomStd
xmin = 10. ymin =
L
xmax = 10. ymax = 10.
xscl = 1. yscl = 1.
variables (
t
toolbar menu) are:
Zoom
10.
L
, ,
tmin tmax tstep
) to
350