HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 227)

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In this example, Function has been selected as the plot type and the graph of y = 1/x is plotted.

Function

Syntax: plotfunc(Expr)

Draws the plot of a function, given an expression in the independent variable x. An edit line appears. Enter

your expression and press . Note the use of lowercase x.

You can also enter an expression in a dierent variable as long as you declare the variable. To do this, the

syntax is plotfunc(expr(var, var).

Example:

plotfunc(3*sin(x)) draws the graph of y=3*sin(x)

plotfunc(a^2, a) plots the graph of a parabola

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 specied 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).

Plot view: Cmds menu 179

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