Other changes and additions

The preferred syntax to undo a command set 5#5something6#6 is now unset 5#5something6#6 rather than set no5#5something6#6. The older form has been deprecated. Version 4.0 continues to allow the older syntax, but such backwards compatibility may be lost in future versions.

Commands of the form set 5#5something6#6 5#5style6#6 also are deprectated in favor of the more general form set style 5#5something6#6 5#5options6#6. Many more plot elements now have style options of their own, including arrows, filled areas, lines, and points. There are also style settings for input data and formatting. Please see set style (p. ), set decimalsign (p. ), and set datafile (p. ).

Improved 2D and 3D clipping (hidden lines).

More consistent point styles and other default formatting styles across all terminals. Please use the test command to check default styles and plotting capabilities for the currently selected terminal type.

The set label command supports associated points, and allows you to specify point style and text style (font, rotation, etc). User variables can be included in labels via format specifiers in the label text. See set label (p. ).

New command set view map to select top-view 2D projection of 3D surface plot.

New commands set term push and set term pop to achieve platform independent restoring of the terminal after printing,

The load and save commands accept piped input and output, respectively.

The history command (for gnuplot with its own readline, not with GNU readline) now includes several useful options.

The built-in function rand(x) has been modified to allow explicit seeding of the pseudo-random number generator. See random (p. ).

The MS Windows package includes an additional executable pgnuplot.exe to support piping command through standard input, which is otherwise not available for graphical applications on this system.