Based on png-version by User:Jitse Niesen (with gnuplot source code), and on svg-version by User:Cronholm144.

set terminal svg fname "Vera" fsize 25
set output "Interpolation_example_polynomial.svg"
set key off
set xzeroaxis
set xtics axis 1,1
set ytics nomirror 1
set samples 300
set border 2
f(x) = - 0.0001521*x**6 - 0.003130*x**5 + 0.07321*x**4 - 0.3577*x**3 +  0.2255*x**2 + 0.9038*x
set yrange [-1.1:1.1]
plot f(x) with lines linetype 3 linewidth 4, \
     "-" with points linetype 1 pointtype 7 pointsize 0.7, \
       0 with lines linetype -1 linewidth 1
0 0
1 0.8415
2 0.9093
3 0.1411
4 -0.7568
5 -0.9589
6 -0.2794
e

Please use at least version 4.2 of Gnuplot for smooth lines in SVG.

本作品已被作者Berland释出到公有领域。这适用于全世界。 在一些国家这可能不合法；如果是这样的话，那么： Berland无条件地授予任何人以任何目的使用本作品的权利，除非这些条件是法律规定所必需的。