mathjsunits06.js

mathjsunits06.js

function astronomical()
{
    // create length units for astronomy
    math.createUnit('lightyear', '9460730777119.56 km');
    math.createUnit('parsec', '30856775714409.19 km');
    math.createUnit('AU', '149597870.7 km');

    // Proxima Centauri is the nearest star to the Sun
    const EarthToProximaCentauri = math.unit(4.2465, 'lightyear');
    output(`EarthToProximaCentauri: ${EarthToProximaCentauri}`);
    output(`EarthToProximaCentauri.to('km'): ${EarthToProximaCentauri.to('km')}`);
    output(`EarthToProximaCentauri.to('parsec'): ${EarthToProximaCentauri.to('parsec')}`);

    output("<br>");

    const EarthToSun = math.unit(1.0, 'AU');
    output(`EarthToSun: ${EarthToSun}`);
    output(`EarthToSun.to('miles'): ${EarthToSun.to('miles')}`);
    output(`EarthToSun.to('miles').toNumber(): ${EarthToSun.to('miles').toNumber()}`);
}