PhpSpreadsheet/tests/data/Calculation/MathTrig/FACTDOUBLE.php

<?php

return [
    [
        0,
        1,
    ],
    [
        6,
        48,
    ],
    [
        7,
        105,
    ],
    [
        5,
        15,
    ],
    [
        8,
        384,
    ],
    [
        13,
        135135,
    ],
    [
        -1,
        '#NUM!',
    ],
    [
        'ABC',
        '#VALUE!',
    ],
];