# comet

## Purpose

Animated comet plot.

## Synopsis

    comet(y)
    comet(x,y)
    comet(x,y,p)
    comet

## Description

A comet plot is an animated graph in which a circle (the comet head) traces the data points on the screen. A trailing segment, the comet body, follows the head. The tail traces the entire function using a solid line.

`comet(y)` displays an animated comet plot of the vector `y`.

`comet(x,y)` displays an animated comet plot of vector`y` versus vector `x`.

`comet(x,y,p)` uses a comet body of length `p*length(y)`. The default value for `p` is 0.1.

`comet`, with no arguments, provides a demonstration of the comet plot.

## Examples

    t = 0:.01:2*pi;
    x = cos(2*t).*(cos(t).^2);
    y = sin(2*t).*(sin(t).^2);
    comet(x,y)

## See Also

    comet3, quakedemo

(c) Copyright 1994 by The MathWorks, Inc.