@prefix psr: <http://data.loterre.fr/ark:/67375/PSR> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

psr: a skos:ConceptScheme .
psr:-N9RX7F6C-D
  skos:inScheme psr: ;
  skos:exactMatch <https://fr.wikipedia.org/wiki/Sinus_cardinal>, <https://en.wikipedia.org/wiki/Sinc_function> ;
  skos:definition """En mathématiques, la fonction sinus cardinal est une fonction définie à partir de la fonction trigonométrique sinus apparaissant fréquemment dans des problèmes de physique ondulatoire. 
<br/>(Wikipedia, L'Encylopédie Libre, <a href="https://fr.wikipedia.org/wiki/Sinus_cardinal">https://fr.wikipedia.org/wiki/Sinus_cardinal</a>)"""@fr, """In mathematics, physics and engineering, the sinc function, denoted by sinc(<i>x</i>), has two forms, normalized and unnormalized. In mathematics, the historical <b>unnormalized sinc function</b> is defined for <span class="texhtml"><i>x</i> ≠ 0</span> by
         <div class="mwe-math-element"><div class="mwe-math-mathml-display mwe-math-mathml-a11y" style="display: none;"><math display="block" xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\\\\displaystyle \\\\operatorname {sinc} x={\\rac {\\\\sin x}{x}}.}">
         <semantics>
         <mrow class="MJX-TeXAtom-ORD">
         <mstyle displaystyle="true" scriptlevel="0">
         <mi>sinc</mi>
         <mo>⁡<!-- ⁡ --></mo>
         <mi>x</mi>
         <mo>=</mo>
         <mrow class="MJX-TeXAtom-ORD">
         <mfrac>
         <mrow>
         <mi>sin</mi>
         <mo>⁡<!-- ⁡ --></mo>
         <mi>x</mi>
         </mrow>
         <mi>x</mi>
         </mfrac>
         </mrow>
         <mo>.</mo>
         </mstyle>
         </mrow>
         <annotation encoding="application/x-tex">{\\\\displaystyle \\\\operatorname {sinc} x={\\rac {\\\\sin x}{x}}.}</annotation>
         </semantics>
         </math></div><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c2fc330662a1521de164ade0a5155bea91b31e62" class="mwe-math-fallback-image-display mw-invert" aria-hidden="true" style="vertical-align: -1.838ex; width:14.759ex; height:5.176ex;" alt="{\\\\displaystyle \\\\operatorname {sinc} x={\\rac {\\\\sin x}{x}}.}"></div>
<br/>(Wikipedia, The Free Encyclopedia, <a href="https://en.wikipedia.org/wiki/Sinc_function">https://en.wikipedia.org/wiki/Sinc_function</a>)"""@en ;
  skos:prefLabel "sinc function"@en, "sinus cardinal"@fr ;
  a skos:Concept ;
  skos:broader psr:-FH1H1FB9-1, psr:-HD65CQDF-2 .

psr:-HD65CQDF-2
  skos:prefLabel "trigonometric function"@en, "fonction trigonométrique"@fr ;
  a skos:Concept ;
  skos:narrower psr:-N9RX7F6C-D .

psr:-FH1H1FB9-1
  skos:prefLabel "special function"@en, "fonction spéciale"@fr ;
  a skos:Concept ;
  skos:narrower psr:-N9RX7F6C-D .