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log10

(PHP 4, PHP 5)

log10 — Base-10 logarithm

Опис

float log10 ( float $arg )

Returns the base-10 logarithm of arg.

Параметри

arg: The argument to process

Значення, що повертаються

The base-10 logarithm of arg

Прогляньте Також

log() - Natural logarithm

User Contributed Notes 1 note

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smalladi at lexgen dot com ¶

22 years ago


Note that log of a negative or undefined number returns -Infinity.