HP Prime Graphing Wireless Calculator - Manual (Page 55)

Geometry 51
plots the parametric equation over the interval specified in the
second argument.
Syntax: plotparam(f(Var)+i*g(Var), Var=
Start..Stop, [tstep=Value])
Examples:
plotparam(cos(t)+ i*sin(t), t=0..2*π) plots the
unit circle
plotparam(cos(t)+ i*sin(t), t=0..2*π,
tstep=π/3) plots a regular hexagon inscribed in the unit
circle (note the tstep value)
Polar
Draws a polar plot.
Syntax: plotpolar(Expr,Var=Interval, [Step]) or
plotpolar(Expr, Var, Min, Max, [Step])
plotpolar(f(x),x,a,b) draws the polar curve r=f(x)
for x in [a,b]
Sequence
Given an expression in x and a list containing three values,
draws the line y=x, the plot of the function defined by the
expression over the domain defined by the interval between
the last two values, and draws the cobweb plot for the first n
terms of the sequence defined recursively by the expression
(starting at the first value).
Syntax: plotseq(f(Var), Var={Start, Xmin,
Xmax}, Integern)
Example:
plotseq(1-x/2, x={3 -1 6}, 5) plots y=x and
y=1–x/2 (from x=–1 to x=6), then draws the first 5 terms of
the cobweb plot for u(n)=1-(u(n–1)/2, starting at
u(0)=3
Implicit
Plots an implicitly defined curved from Expr (in x and y).
Specifically, plots Expr=0. Note the use of lowercase x and y.
With the optional x-interval and y-interval, plots only within
those intervals.
Syntax: plotimplicit(Expr, [XIntrvl, YIntrvl])