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log10

(PHP 4, PHP 5)

log10 — Logaritmo base-10

float log10 ( float $arg )

Restituisce il logaritmo in base-10 di arg.

Vedere anche: log()

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-4

jphansen at uga dot edu ¶

3 years ago


Alternatively log(x, 10) may be used.

down

-10

13 years ago


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