File:NewtonsMethodConvergenceFailure.svg

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Original file(SVG file, nominally 1,000 × 1,000 pixels, file size: 84 KB)

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Summary[edit]

Description Plot of x^3 - 2x + 2, including tangent lines at x = 0 and x = 1. Illustrates why Newton's method doesn't always converge for this function.
Date
Source Self-made, created using FooPlot and modified in Inkscape.
Author Aaron Rotenberg

Gnuplot[edit]

# Author: Ika, 24 Aug 2013

set terminal svg size 1000 1000 fixed enhanced fname 'Times'  fsize 36
set output "Newton_Method_SVG.svg"

set samples 2000

set autoscale fix
set xrange [-3:4]
set yrange [-3:4]

set grid
set xtics -3,1,4
set ytics -3,1,4
set xzeroaxis linewidth 2.5
set yzeroaxis linewidth 2.5

set nokey

unset border
set multiplot
plot x lw 2 lc rgb "red"
plot -2*x+2 lw 2 lc rgb "blue"
plot x*x*x-2*x+2 lw 2 lc rgb "black"
unset multiplot

Licensing[edit]

Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

File history

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Date/TimeThumbnailDimensionsUserComment
current05:59, 25 August 2013Thumbnail for version as of 05:59, 25 August 20131,000 × 1,000 (84 KB)IkamusumeFan (talk | contribs)1. Much clearer labels; 2. Source code added.
00:45, 15 March 2008Thumbnail for version as of 00:45, 15 March 2008500 × 300 (6 KB)Aaron Rotenberg (talk | contribs){{Information |Description=Plot of ''x''^3 - 2''x'' + 2, including tangent lines at ''x'' = 0 and ''x'' = 1. Illustrates why Newton's method doesn't always converge for this function. |Source=self-made |Date=March 14, 2008 |Author=

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