@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:-K67CLK72-P
  a skos:Concept ;
  skos:broader psr:-FZDLXCSS-T ;
  skos:altLabel "logarithme népérien"@fr ;
  skos:prefLabel "logarithme naturel"@fr, "natural logarithm"@en ;
  skos:exactMatch <https://fr.wikipedia.org/wiki/Logarithme_n%C3%A9p%C3%A9rien>, <https://en.wikipedia.org/wiki/Natural_logarithm> ;
  dc:modified "2024-10-18"^^xsd:date ;
  skos:definition """Le logarithme népérien, ou logarithme naturel, ou encore jusqu'au XXe siècle logarithme hyperbolique, transforme, comme les autres fonctions logarithmes, les produits en sommes. L'utilisation de telles fonctions permet de faciliter les calculs comprenant de nombreuses multiplications, divisions et élévations à des puissances rationnelles. Il est souvent noté ln(). 
<br/>(Wikipedia, L'Encylopédie Libre, <a href="https://fr.wikipedia.org/wiki/Logarithme_n%C3%A9p%C3%A9rien">https://fr.wikipedia.org/wiki/Logarithme_n%C3%A9p%C3%A9rien</a>)"""@fr, """The <b>natural logarithm</b> of a number is its logarithm to the base of the mathematical constant <span class="texhtml mvar" style="font-style:italic;">e</span>, which is an irrational and transcendental number approximately equal to <span class="texhtml"><span class="nowrap"><span data-sort-value="7000271828182845899♠"></span>2.718<span style="margin-left:.25em;">281</span><span style="margin-left:.25em;">828</span><span style="margin-left:.25em;">459</span></span></span>. The natural logarithm of <span class="texhtml mvar" style="font-style:italic;">x</span> is generally written as <span class="texhtml">ln <i>x</i></span>, <span class="texhtml">log<sub><i>e</i></sub> <i>x</i></span>,  or sometimes, if the base <span class="texhtml mvar" style="font-style:italic;">e</span> is implicit, simply <span class="texhtml">log <i>x</i></span>. Parentheses are sometimes added for clarity, giving <span class="texhtml">ln(<i>x</i>)</span>, <span class="texhtml">log<sub><i>e</i></sub>(<i>x</i>)</span>, or <span class="texhtml">log(<i>x</i>)</span>. This is done particularly when the argument to the logarithm is not a single symbol, so as to prevent ambiguity 
<br/>(Wikipedia, The Free Encyclopedia, <a href="https://en.wikipedia.org/wiki/Natural_logarithm">https://en.wikipedia.org/wiki/Natural_logarithm</a>)"""@en ;
  skos:inScheme psr: .

psr: a skos:ConceptScheme .
psr:-FZDLXCSS-T
  skos:prefLabel "logarithme"@fr, "logarithm"@en ;
  a skos:Concept ;
  skos:narrower psr:-K67CLK72-P .