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

<?php

return [
    [
        -1.5,
        -1,
    ],
    [
        -1,
        -1,
    ],
    [
        -0.5,
        -1,
    ],
    [
        0,
        0,
    ],
    [
        0.5,
        1,
    ],
    [
        1,
        1,
    ],
    [
        1.5,
        1,
    ],
    [
        2,
        1,
    ],
    [
        2.5,
        1,
    ],
    [
        'ABC',
        '#VALUE!',
    ],
    [
        true,
        1,
    ],
    [
        false,
        0,
    ],
    [
        '-3.5',
        -1,
    ],
];