writes the current image to
disk. I recommend using .png images for high quality output, or JPEGs
when image size is important. GIFs are not recommended, since they can
only manage 256 colors.
returns you to the
standard view, in case you get lost. zooms out so the picture is four units on a side,
but doesn't reset the other parameters. and save and load plain-text parameter
description files, so you can return to images in the future.
temporarily halts the current
calculation, in the unlikely event you have something more important
than generating fractals to do.