HP Prime Graphing Wireless Calculator - Manual (Page 54)

50 Geometry
Parabola
Draws a parabola, given a focus point and a directrix line, or
the vertex of the parabola and a real number that represents
the focal length.
parabola(point,line)
or
parabola(vertex,real)
Examples:
parabola(GA, GB) draws a parabola whose focus is point
A and whose directrix is line B.
parabola(GA, 1) draws a parabola whose vertex is point
A and whose focal length is 1.
Conic
Plots the graph of a conic section defined by an expression in
x and y.
conic(expr)
Example:
conic(x^2+y^2-81) draws a circle with center at (0,0)
and radius of 9
Locus
Given a first point and a second point that is an element of (a
point on) a geometric object, draws the locus of the first point
as the second point traverses its object.
locus(point,element)
Plot
Function
Draws the plot of a function, given an expression in the
independent variable x. Note the use of lowercase x.
Syntax: plotfunc(Expr)
Example:
plotfunc(3*sin(x)) draws the graph of y=3*sin(x)
Parametric
Takes a complex expression in one variable and an interval
for that variable as arguments. Interprets the complex
expression f(t)+i*g(t) as x=f(t) and y=g(t) and