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[edit] Last updated: Fri, 10 Feb 2012

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log10

(PHP 4, PHP 5)

log10 — Logarithme en base 10

Description

float log10 ( float $arg )

Retourne le logarithme en base 10 de arg.

Liste de paramètres

arg

L'argument à traiter

Valeurs de retour

Le logarithme en base 10 de arg.

Voir aussi

  • log() - Logarithme naturel (népérien)



add a note add a note User Contributed Notes log10
jphansen at uga dot edu 22-Jun-2011 06:31
Alternatively log(x, 10) may be used.
smalladi at lexgen dot com 20-Nov-2001 03:47
Note that log of a negative or undefined number returns -Infinity.
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