https://davethehuman.com/tags/k-means/Recent content in K-Means on davethehuman.comHugo -- gohugo.ioen© 2026 Dave the humanTue, 29 Sep 2026 00:00:00 +0000https://davethehuman.com/notes/euclidean-distance/Tue, 29 Sep 2026 00:00:00 +0000https://davethehuman.com/notes/euclidean-distance/<p>The <em>Euclidean distance</em> is the measure of the true straight-line distance between two points in a Euclidean space. It is the geometric distance you would measure with a ruler, representing the shortest path between those points.</p> <h2 class="relative group">The Formula <div id="the-formula" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#the-formula" aria-label="Anchor">#</a> </span> </h2> $$ d(p, q) = \sqrt{\sum_{i=1}^{n} (q_i - p_i)^2} $$<p>In a 2D Space, for two points $P_1(x_1, y_1)$ and $P_2(x_2, y_2)$: </p>