Interpolation_example_polynomial.svg


Summary

Description IIllustration of polynomial interpolation of a data set. The same data set is used for other interpolation algorithms in the Interpolation .
Date
Source self-made in Gnuplot
Author Berland

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

Gnuplot source code

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.

Licensing

Public domain This work has been released into the public domain by its author, I, Berland . This applies worldwide.
In some countries this may not be legally possible; if so:
I, Berland grants anyone the right to use this work for any purpose , without any conditions, unless such conditions are required by law.

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26 June 2007