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mathematical analysis > function > elementary function > logarithm > natural logarithm
... > mathematical analysis > complex analysis > analytic function > transcendental function > logarithm > natural logarithm
... > mathematical analysis > real analysis > real-valued function > analytic function > transcendental function > logarithm > natural logarithm
... > number > elementary arithmetic > operation > algebraic operation > logarithm > natural logarithm
... > algebra > elementary algebra > operation > algebraic operation > logarithm > natural logarithm

Terme préférentiel

natural logarithm  

Définition

  • The natural logarithm of a number is its logarithm to the base of the mathematical constant e, which is an irrational and transcendental number approximately equal to 2.718281828459. The natural logarithm of x is generally written as ln x, loge x, or sometimes, if the base e is implicit, simply log x. Parentheses are sometimes added for clarity, giving ln(x), loge(x), or log(x). This is done particularly when the argument to the logarithm is not a single symbol, so as to prevent ambiguity
    (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Natural_logarithm)

Concept générique

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http://data.loterre.fr/ark:/67375/PSR-K67CLK72-P

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