GNUPLOT 是在 1986 年由 Colin kelley 和 Thomas Williams 所发展的绘图 公用程式，可将数学函数 或数值资料以平面或立体的图形画在不同种类终端机 或绘图输出装置上。目前已广泛地被人们使 用，在 Internet 网路上尚有 newsgroup --- comp.graphics.gnuplot 作为大家交换心得或学习的园地。
Gnuplot is a portable command-line driven graphing utility for linux, OS/2, MS Windows, OSX, VMS, and many other platforms. The source code is copyrighted but freely distributed (i.e., you don't have to pay for it). It was originally created to allo
