HP Prime Graphing Wireless Calculator User Manual
Page 35
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Geometry
31
Example:
plotfunc(3*sin(x)) draws the graph of y=3*sin(x)
Parametric
Syntax: plotparam(f(Var)+i*g(Var), Var=
Start..Stop, [tstep=Value])
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
plots the parametric equation over the interval specified in the
second argument. An edit line opens for you to enter the
complex expression and the interval.
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
Syntax: plotpolar(Expr,Var=Interval, [Step]) or
plotpolar(Expr, Var, Min, Max, [Step])
Draws a polar graph in Plot view. An edit line opens for you
to enter an expression in x as well as an interval (and optional
step).
plotpolar(f(x),x,a,b) draws the polar curve r=f(x)
for x in [a,b]
Sequence
Syntax: plotseq(f(Var), Var={Start, Xmin,
Xmax}, Integer n)
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).