In Mathematica, how can I save and print a graphic?

Below is an example of saving a Mathematica graphic in GIF format and printing it at the Unix prompt.

Note: If you are running Mathematica remotely, you need an X11 connection. You do not, however, need to run the Mathematica front end.

1. In Mathematica, enter the following command, which will generate the graphic to be saved: myplot = Plot[x^2, {x,-2,2}]
2. In Mathematica, enter the following to export the graphic: Export["foo.gif",myplot]

   This writes the file foo.gif to your current directory.

3. After either of these, you can print the result by exiting Mathematica and then entering at the Unix prompt: lpr -P yourprinter foo.gif

   Replace yourprinter with the name of the printer you wish to use (for example, sb231ps ).

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