Polar Plotting

## Description

When plotting in polar coordinates, $\theta$ is the input variable and $r$ is the output. The Sage cell below plots the function

(1)\begin{align} r( \theta) = 3 \sin ( 3\theta ), \end{align}

which is a three-leaf rose.

## Sage Cell

#### Code

```
var( "theta" )
p = polar_plot( 3 * sin( 3 * theta ), (theta, 0, 2*pi), frame = True )
p
```

## Options

None

## Tags

Primary Tags—Plotting: Two-dimensional plots

Secondary Tags—Two-dimensional plots: Polar plots

## Related Cells

- Two-Dimensional Plots. Plotting $y = \sin(x)$ for $-10 \leq x \leq 10$.
- Occasional Issues in Polar Plotting. Problems with certain polar functions in Sage.

## Attribute

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Date: 30 Oct 2018 17:09

Submitted by: James A Phillips