DescriptionIntegration trapezoid.svg	Numerical integration by the Trapezoidal Method. The function being used is ${\displaystyle f(x)=x^{2}+\sin(2\pi x)}$.
Date	4 November 2010, 06:29 (UTC)
Source	Calkowanie_numeryczne-metoda_trapezow.png
Author	Calkowanie_numeryczne-metoda_trapezow.png: Emergie derivative work: Kpengboy (talk)

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Gnuplot Script Used edit

# SVG output
set terminal svg size 340 102
set output "Integration_trapezoid.svg"
set samples 1000

# Configure border, axes, etc.
unset key
set xrange [-2:2]
set yrange [-1.5:4.75]
set border 3 lt 1 lc rgb "black"
set grid
set xtics autofreq 1
set ytics autofreq 2

# Define our function
f(x) = x**2 + sin(2*pi*x)

# Draw trapezoids
set for [i = 0:15] object i+1 polygon from -2+.25*i,0 to -2+.25*(i+1),0 to -2+.25*(i+1),f(-2+.25*(i+1)) to -2+.25*i,f(-2+.25*i) to -2+.25*i,0 fs empty border lt 3

# Plot
plot f(x)

Original upload log edit

This image is a derivative work of the following images:

• File:Calkowanie_numeryczne-metoda_trapezow.png licensed with PD-self
  • 2008-02-16T19:44:56Z Emergie 340x102 (1100 Bytes) {{Information |Description=Numerical integration |Source=własna praca |Date= |Author= [[User:Emergie|Emergie]] |Permission= |other_versions= }} [[Category:Numerical analysis]]

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