Graphics |

**Feather Plots**

The `feather`

function shows vectors emanating from a straight line parallel to the *x*-axis. For example, create a vector of angles from 90° to 0° and a vector the same size, with each element equal to `1`

.

Before creating a feather plot, transform the data into Cartesian coordinates and increase the magnitude of `r`

to make the arrows more distinctive.

**Plotting Complex Numbers**

If the input argument `Z`

is a matrix of complex numbers, `feather`

interprets the real parts of `Z`

as the *x* components of the vectors and the imaginary parts as the *y *components of the vectors.

t = 0:0.5:10;

`% Time limits`

s = 0.05+i;`% Spiral rate`

Z = exp(-s*t);`% Compute decaying exponential`

feather(Z)

**Printing the Graph**

This particular graph looks better if you change the figure's aspect ratio by stretching the figure lengthwise using the mouse. However, to maintain this shape in the printed output, set the figure's `PaperPositionMode`

to `auto`

.

In this mode, MATLAB prints the figure as it appears on screen.

Compass Plots | Two-Dimensional Quiver Plots |

© 1994-2005 The MathWorks, Inc.