** Next:** Exercises
** Up:** No Title
** Previous:** Background

There are several ways you can have Maple give a plot in polar coordinates. (Since is not a usual keyboard symbol, we will use *t* to designate the angle.) You can load a polar plotting routine and use it.

**with(plots,polarplot)**;

**polarplot(f(t),t=a..b)**;

You could also use **plot** and designate that the plot is polar.

**plot([f(t),t,t=a..b],coords=polar)**;

Or you could load the **CalcP** package and use one of its routines.

**with(CalcP)**;

**ParamPlot([f(t),t],t=a..b,coords=polar)**;

Make sure you click inside the area between the two axes. A tool bar should pop up for you to
use.
**ParamPlot** makes use of the Maple **animate** command. With this you can see the curve traced out in ``slow motion" as *t* (really ) increases. This can be useful in figuring out the *t* range needed to trace out a given loop of a complicated graph. When the plot screen appears, click on the **play** box to get the graph. Click on the **?** box to see the labels for the various boxes.
It is also possible to do more than one polar plot at a time.

**plot({[f1(t),t,t=a..b],[f2(t),t,t=c..d]},coords=polar)**;

*Roger Yin-Man Lui*

*9/24/1997*