Gnuplot in Action

I am trying to grasp how to use gnuplot because one of our project used gnuplot, and I am deeply attracted by the power it shows. Although I have taken courses in Matlab SAS, and I know how to use those software to draw all those kinds of beautiful curves, the one using gnuplot still astonished me for it flexibility. That’s how this article comes out.

1.first let us quote some words,

The purpose of computing is insight, not numbers.
	—R. W. Hamming

The purpose of computing is insight, not pictures.
	—L. N. Trefethen

2.According to research in cognitive science, the things people remember are things they discover during self-motivated exploration. (Personally I think this is true).