pports multiple calculations against a single time point (i.e.
multiple start dates with a single end date). Note that start and end
must otherwise be of the same length.</p>
<p>When the start and end dates are of different types (i.e. x = date,
y = datetime), a lossy cast will be performed which strips the datetime data
of its time components. This is done to avoid an assumption of more time
passing that would otherwise come with casting the date data to datetime.</p>
    </div>

    <div class="section le