@prefix psr: <http://data.loterre.fr/ark:/67375/PSR> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

psr:-RBFVN7DN-2
  skos:prefLabel "mathematical constant"@en, "constante mathématique"@fr ;
  a skos:Concept ;
  skos:narrower psr:-XRGZJ4L5-Q .

psr:-TT0V0XBL-P
  skos:prefLabel "entier quadratique"@fr, "quadratic integer"@en ;
  a skos:Concept ;
  skos:narrower psr:-XRGZJ4L5-Q .

psr:-XRGZJ4L5-Q
  skos:broader psr:-WX8H0134-J, psr:-TT0V0XBL-P, psr:-RBFVN7DN-2 ;
  skos:definition """La <b>racine carrée de deux</b>, notée <span class="texhtml"><span class="racine">√<span style="border-top:1px solid; padding:0 0.1em;">2</span></span></span> (ou parfois 2<sup>1/2</sup>), est définie comme le seul nombre réel positif qui, lorsqu’il est multiplié par lui-même, donne le nombre 2, autrement dit <span class="texhtml"><span class="racine">√<span style="border-top:1px solid; padding:0 0.1em;">2</span></span> × <span class="racine">√<span style="border-top:1px solid; padding:0 0.1em;">2</span></span> = 2</span>. C’est un nombre irrationnel, dont une valeur approchée à 10<sup>–9</sup> près est :  <dl><dd><span class="texhtml"><span class="racine">√<span style="border-top:1px solid; padding:0 0.1em;">2</span></span>  ≈ 1,414 213 562</span>.</dd> 
<br/>(Wikipedia, L'Encylopédie Libre, <a href="https://fr.wikipedia.org/wiki/Racine_carr%C3%A9e_de_deux">https://fr.wikipedia.org/wiki/Racine_carr%C3%A9e_de_deux</a>)"""@fr, """The <b>square root of 2</b> (approximately 1.4142) is a positive real number that, when multiplied by itself, equals the number 2. It may be written in mathematics as <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\\\\displaystyle {\\\\sqrt {2}}}">   <semantics>     <mrow class="MJX-TeXAtom-ORD">       <mstyle displaystyle="true" scriptlevel="0">         <mrow class="MJX-TeXAtom-ORD">           <msqrt>             <mn>2</mn>           </msqrt>         </mrow>       </mstyle>     </mrow>     <annotation encoding="application/x-tex">{\\\\displaystyle {\\\\sqrt {2}}}</annotation>   </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b4afc1e27d418021bf10898eb44a7f5f315735ff" class="mwe-math-fallback-image-inline mw-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.098ex; height:3.009ex;" alt="{\\\\sqrt {2}}"></span> or <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\\\\displaystyle 2^{1/2}}">   <semantics>     <mrow class="MJX-TeXAtom-ORD">       <mstyle displaystyle="true" scriptlevel="0">         <msup>           <mn>2</mn>           <mrow class="MJX-TeXAtom-ORD">             <mn>1</mn>             <mrow class="MJX-TeXAtom-ORD">               <mo>/</mo>             </mrow>             <mn>2</mn>           </mrow>         </msup>       </mstyle>     </mrow>     <annotation encoding="application/x-tex">{\\\\displaystyle 2^{1/2}}</annotation>   </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6ba641eed04cfff264e1e23bf4b9cca6aae06326" class="mwe-math-fallback-image-inline mw-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:3.861ex; height:2.843ex;" alt="2^{{1/2}}"></span>. It is an algebraic number, and therefore not a transcendental number. Technically, it should be called the principal square root of 2, to distinguish it from the negative number with the same property.  
<br/>(Wikipedia, The Free Encyclopedia, <a href="https://en.wikipedia.org/wiki/Square_root_of₂">https://en.wikipedia.org/wiki/Square_root_of₂</a>)"""@en ;
  a skos:Concept ;
  dc:created "2023-08-03"^^xsd:date ;
  skos:exactMatch <https://fr.wikipedia.org/wiki/Racine_carr%C3%A9e_de_deux>, <https://en.wikipedia.org/wiki/Square_root_of₂> ;
  dc:modified "2024-10-18"^^xsd:date ;
  skos:prefLabel "racine carrée de deux"@fr, "square root of 2"@en ;
  skos:inScheme psr: .

psr: a skos:ConceptScheme .
psr:-WX8H0134-J
  skos:prefLabel "nombre irrationnel"@fr, "irrational number"@en ;
  a skos:Concept ;
  skos:narrower psr:-XRGZJ4L5-Q .