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    log10

    (PHP 4, PHP 5, PHP 7, PHP 8)

    log10 — Base-10 logarithm

    Description

    log10(float $num): float

    Returns the base-10 logarithm of num.

    Parameters

    num

    The argument to process

    Return Values

    The base-10 logarithm of num

    See Also

    • log() - Natural logarithm

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    User Contributed Notes 1 note

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    smalladi at lexgen dot com
    23 years ago
    Note that log of a negative or undefined number returns -Infinity.
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