ezpolar

(Not recommended) Polar coordinate plotter

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ezpolar is not recommended. Use fpolarplot instead.

Syntax

ezpolar(f)

ezpolar(f, [a b])

Description

ezpolar(f) plots the polar curve r = f(θ) over the default domain 0 < θ < 2π.

example

ezpolar(f, [a b]) plots f for a < θ < b.

Examples

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Polar Plot of Symbolic Expression

Open Live Script

Create a polar plot of the function $r (t) = 1 + \cos (t)$ over the domain $0 < t < 2 π$ .

syms t
ezpolar(1 + cos(t))

Figure contains an axes object. The hidden axes object contains 2 objects of type line, text.

Input Arguments

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`f` — Input
symbolic function | symbolic expression

Input, specified as a symbolic function or expression.

`[a b]` — Angle to plot over
vector | symbolic vector

Angle to plot over, specified as a vector, or a symbolic vector.

Version History

Introduced before R2006a

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R2024a: Not recommended

The ezpolar function is not recommended. However, there are no plans to remove the function. To plot a symbolic expression or function in polar coordinates, use fpolarplot instead.

The fpolarplot function has these advantages over ezpolar:

Unlike ezpolar, fpolarplot uses additional evaluation points when needed for more accurate function plotting.
With fpolarplot, you can specify an argument to customize the line style, marker symbol, and color.
fpolarplot uses a PolarAxes object, which you can customize by setting the PolarAxes Properties. For example, you can change the range of angle values or choose whether to display angles in radians or degrees.

This table shows some typical usages of ezpolar and how to update your code to use fpolarplot instead. To display the plotted expression or function as ezpolar does, use the title function.

Not Recommended	Recommended
syms t ezpolar(1 + cos(t))	syms t fpolarplot(1 + cos(t)) title("r = 1 + cos(t)")
syms t ezpolar(cos(t),[0 pi/4])	syms t fpolarplot(cos(t),[0 pi/4]) title("r = cos(t)")