Dostupna je vektorska inačica (SVG) ove slike. Trebala bi se koristiti umjesto ove rasterske slike ako je kvalitetnija. File:Paraboloid of Revolution.png → File:Paraboloid of Revolution.svg Za više informacija o vektorskoj grafici, pročitajte o prelasku Zajedničkog poslužitelja na SVG. Također pročitajte informacije o podršci MediaWiki softvera slikama u SVG formatu. Na drugim jezicima Alemannisch ∙ Bahasa Indonesia ∙ Bahasa Melayu ∙ British English ∙ català ∙ čeština ∙ dansk ∙ Deutsch ∙ eesti ∙ English ∙ español ∙ Esperanto ∙ euskara ∙ français ∙ Frysk ∙ galego ∙ hrvatski ∙ Ido ∙ italiano ∙ lietuvių ∙ magyar ∙ Nederlands ∙ norsk bokmål ∙ norsk nynorsk ∙ occitan ∙ Plattdüütsch ∙ polski ∙ português ∙ português do Brasil ∙ română ∙ Scots ∙ sicilianu ∙ slovenčina ∙ slovenščina ∙ suomi ∙ svenska ∙ Tiếng Việt ∙ Türkçe ∙ vèneto ∙ Ελληνικά ∙ беларуская (тарашкевіца) ∙ български ∙ македонски ∙ нохчийн ∙ русский ∙ српски / srpski ∙ татарча/tatarça ∙ українська ∙ ქართული ∙ հայերեն ∙ বাংলা ∙ தமிழ் ∙ മലയാളം ∙ ไทย ∙ 한국어 ∙ 日本語 ∙ 简体中文 ∙ 繁體中文 ∙ עברית ∙ العربية ∙ فارسی ∙ +/−

 

Sažetak

OpisParaboloid of Revolution.png	A 3D rendering of the paraboloid given parametrically by: ${\displaystyle x={\sqrt {u}}\cos(v)\,}$ ${\displaystyle y={\sqrt {u}}\sin(v)\,}$ ${\displaystyle z=u\,}$
Datum	12. travnja 2007. (datum postavljanja)
Izvor	Self-made, using Mathematica 5.1.
Autor	Inductiveload
Dopuštenje (Naknadna uporaba ove datoteke)	Public domainPublic domainfalsefalse This work is ineligible for copyright and therefore in the public domain because it consists entirely of information that is common property and contains no original authorship.

Mathematica Code

This code does not require any modules to be loaded. It uses Chris Hill's Anti-aliasing code.

gr = ParametricPlot3D[
      {Sqrt[u]Cos[v], Sqrt[u]Sin[v], u, {EdgeForm[AbsoluteThickness[4]]}},
      {u, 0, 1},
      {v, 0, 2π},
      BoxRatios -> {1, 1, 0.8},
      PlotPoints -> {10, 50},
      Ticks -> False,
      Axes -> False,
      Boxed -> False,
      ImageSize -> 800];

aa[gr_] := Module[{siz, kersiz, ker, dat, as, ave, is, ar},
    is = ImageSize /. Options[gr, ImageSize];
    ar = AspectRatio /. Options[gr, AspectRatio];
    If[! NumberQ[is], is = 288];
    kersiz = 4;
    img = ImportString[ExportString[gr, PNG, ImageSize -> (is kersiz)], PNG];
    siz = Reverse@Dimensions[img[[1, 1]]][[{1, 2}]];
    ker = Table[N[1/kersiz^2], {kersiz}, {kersiz}];
    dat = N[img[[1, 1]]];
    as = Dimensions[dat];
    ave = Partition[Transpose[Flatten[
        ListConvolve[ker, dat[[All, All, #]]]] & /@ Range[as[[3]]]], 
    as[[2]] - kersiz + 1];
    ave = Take[ave, Sequence @@ ({1, Dimensions[ave][[#]], kersiz} & /@ Range[
    Length[Dimensions[ave]] - 1])];
    Show[Graphics[Raster[ave, {{0, 0}, 
          siz/kersiz}, {0, 255}, ColorFunction -> RGBColor]], PlotRange -> \
{{0, siz[[1]]/kersiz}, {0, siz[[2]]/kersiz}}, ImageSize -> is, AspectRatio -> 
      ar]
    ]
finalgraphic = aa[gr]