File:Gibbs phenomenon 250.png

File:Gibbs phenomenon 250.svg is a vector version of this file. It should be used in place of this PNG file when not inferior. File:Gibbs phenomenon 250.png → File:Gibbs phenomenon 250.svg For more information, see Help:SVG. In other languages Alemannisch ∙ العربية ∙ беларуская (тарашкевіца) ∙ български ∙ বাংলা ∙ català ∙ нохчийн ∙ čeština ∙ dansk ∙ Deutsch ∙ Ελληνικά ∙ English ∙ British English ∙ Esperanto ∙ español ∙ eesti ∙ euskara ∙ فارسی ∙ suomi ∙ français ∙ Frysk ∙ galego ∙ Alemannisch ∙ עברית ∙ hrvatski ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ Ido ∙ italiano ∙ 日本語 ∙ ქართული ∙ 한국어 ∙ lietuvių ∙ македонски ∙ മലയാളം ∙ Bahasa Melayu ∙ norsk bokmål ∙ Plattdüütsch ∙ Nederlands ∙ norsk nynorsk ∙ norsk ∙ occitan ∙ polski ∙ prūsiskan ∙ português ∙ português do Brasil ∙ română ∙ русский ∙ sicilianu ∙ Scots ∙ slovenčina ∙ slovenščina ∙ српски / srpski ∙ svenska ∙ தமிழ் ∙ ไทย ∙ Türkçe ∙ татарча / tatarça ∙ українська ∙ vèneto ∙ Tiếng Việt ∙ 中文 ∙ 中文（中国大陆） ∙ 中文（简体） ∙ 中文（繁體） ∙ 中文（马来西亚） ∙ 中文（新加坡） ∙ 中文（臺灣） ∙ 中文（臺灣） ∙ +/−

 

Picture of a function:

${\displaystyle \sin(x)+{\frac {1}{3}}\sin(3x)+{\frac {1}{5}}\sin(5x)+...+{\frac {1}{249}}\sin(249x)}$

as the 125-th approximation (the first one hundred and twenty-five terms) of the wave function:

${\displaystyle f(x)=\sum _{n=1}^{\infty }\,{\frac {1}{2n-1}}\sin((2n-1)x)}$

which is the Fourier series of the function:

${\displaystyle f(x)={\begin{cases}0&x=2n\pi \\\pi /4&2n\pi <x<(2n+1)\pi \\0&x=(2n+1)\pi \\-\pi /4&(2n+1)\pi <x<2(n+1)\pi \\\end{cases}}}$

This image was taken from w:en:Image:Gibbs phenomenon 250.png created by w:en:User:GadyKozma on 28 Aug. 2004.

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