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    : two minus one?
    (Example: nine)

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    biziclop
    2 years ago
    You can use array_product() to calculate the geometric mean of an array of numbers:

    <?php
    $a     = [ 1, 10, 100 ];
    $geom_avg = pow( array_product( $a ), 1 / count( $a ));
    // = 9.999999999999998 ≈ 10
    ?>

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