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      log1p

      De cppreference.com
      < c‎ | numeric‎ | math

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      C
       
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      Fonctions mathématiques courantes
      Fonctions
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      Functions
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      Opérations de base
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      Basic operations
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      remainder (C99)
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      nan
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      Les fonctions exponentielles
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      Exponential functions
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      Les fonctions de puissance
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      Trigonometric and hyperbolic functions
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      Entier le plus proche opérations en virgule flottante
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      Nearest integer floating point operations
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      ceil
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      Flottant fonctions de manipulation de points
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      Floating point manipulation functions
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      ldexp
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      scalbln      		 (C99)
      (C99)
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      Classification
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      Classification
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      fpclassify (C99)
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      Macro constantes
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      Macro constants
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      FP_NORMAL
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      Déclaré dans l'en-tête <math.h>
      float       log1pf(float arg );
      double      log1p(double arg );
      longdouble log1pl(longdouble arg );
      Calcule le naturel (base e) logarithme de 1+arg. Cette fonction est plus précise que l'expression log(1+arg) si arg est proche de zéro .
      Original:
      Computes the natural (base e) logarithm of 1+arg. This function is more precise than the expression log(1+arg) if arg is close to zero.
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      [modifier]Paramètres

      arg -
      valeur du point flottant
      Original:
      floating point value
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      [modifier]Retourne la valeur

      ln(1+arg)

      Erreur de domaine se produit si arg est négatif. NAN est retourné dans ce cas .
      Original:
      Domain error occurs if arg is negative. NAN is returned in that case.
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      Erreur d'intervalle se produit si arg est ​0​. -HUGE_VAL est retourné dans ce cas .
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      Range error occurs if arg is ​0​. -HUGE_VAL is returned in that case.
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      [modifier]Voir aussi

      calcule naturel (base e) logarithme (de base e) (ln(x))
      Original:
      computes natural (base e) logarithm (to base e) (ln(x))
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      (fonction)[edit]
      calcule commune (base 10) Logarithme (log10(x))
      Original:
      computes common (base 10) logarithm (log10(x))
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      (fonction)[edit]
      C++ documentation for log1p
      Récupérée de « https://fr.cppreference.com/mwiki/index.php?title=c/numeric/math/log1p&oldid=47300 »
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