**set parametric**

**set noparametric**

**set parametric****set xrange [-6:6]****set yrange [-6:6]****set trange[0:10]****set isosamples 60****plot 5*cos(t), 2*sin(t)**

The xrange and yrange values specify the range of the graph
displayed. The **set trange** command sets the range that is used
to compute the parametric equations. If you use brackets to set a
range within the plot command, it will refer to the trange.
The first part of the plot command before the comma is the *x*
equation, and the second part is the *y* equation.

For another example, consider trying to plot the cycloid *x = t -
sin t* and *y = 1 - cos t*.

**set xrange [0:40]****set yrange[-1:3]****set trange [0:40]****plot t-sin(t), 1-cos(t)**

**set xrange [0:30]****set yrange [0:30]****set zrange [0:80]****set grid****splot 2*u, u**2 + v, v**2**

If you changed the **urange** and **vrange** parameters, you
would get a differant graph.

**set vrange [-10:10]***- this makes the graph taller***set urange [-7:7]***- this makes the graph extend further***set isosamples 80****replot**

** Many of the standard 3D features apply to 3D parameter plots (you
can use isosamples, views, and hidden3d)**.

Copyright © 1996 College of Natural Sciences. All Rights Reserved.

Last Modified: 11/4/96