Manual

160 Geometry
Locus Takes two points as its arguments: the first is the point whose
possible locations form the locus; the second is a point on an
object. This second point drives the first through its locus as the
second moves on its object.
In the example at the right,
circle C has been drawn and
point D is a point placed on
C (using the Point On
function described above).
Point I is a translation of
point D. Choosing Curve >
Special > Locus places
locus( on the entry line. Complete the command as
locus(GI,GD) and point I traces a path (its locus) that
parallels point D as it moves around the circle to which it is
constrained.
Plot You can plot expressions of the following types in Plot view:
• Function
• Parametric
• Polar
• Sequence
Tap , select
Plot, and
then the type of expression
you want to plot. The entry
line is enabled for you to
define the expression.
Note that the variables you
specify for an expression
must be in lowercase.
In this example,
Function
has been selected as the plot
type and the graph of y = 1/
x is plotted.