geometric median
...that while the center of gravity for a set of points is located at the spot from which the sum of the squares of distances to all the points is minimized, the geometric median is the spot from which the sum of distances is minimized?
...that while the <a class="mw-redirect" href="./Center_of_gravity" id="mwEbs" rel="mw:WikiLink" title="Center of gravity">center of gravity</a> for a set of points is located at the spot from which the <i id="mwEbw">sum of the squares of distances</i> to all the points is minimized, the <b id="mwEb0"><a href="./Geometric_median" id="mwEb4" rel="mw:WikiLink" title="Geometric median">geometric median</a></b> is the spot from which the <i id="mwEb8">sum of distances</i> is minimized?