GNUPLOT学习

以前画图都是用的matlab,但matlab实在是太耗费资源了,为了画一个图打开matlab太浪费了,现在学习使用gnuplot.

启动gnuplot:
$ gnuplot

        G N U P L O T
        Version 4.0 patchlevel 0
        last modified Thu Apr 15 14:44:22 CEST 2004
        System: Linux 2.6.14-perfter-2.6.21

        Copyright (C) 1986 - 1993, 1998, 2004
        Thomas Williams, Colin Kelley and many others

        This is gnuplot version 4.0.  Please refer to the documentation
        for command syntax changes.  The old syntax will be accepted
        throughout the 4.0 series, but all save files use the new syntax.

        Type `help` to access the on-line reference manual.
        The gnuplot FAQ is available from
                http://www.gnuplot.info/faq/

        Send comments and requests for help to
                <[email protected]>
        Send bugs, suggestions and mods to
                <[email protected]>


Terminal type set to 'x11'

第一个图形:
gnuplot> plot [-2*pi:2*pi] [-1:1] sin(x),tan(x)

500)this.width=500;" border="0" width="500">

按q键可以关闭图形,在终端输入q或者quit或exit可以退出gnuplot