This example shows a minimal SVG circle with a radius of 100 units, rendered using inline SVG within a basic HTML page. The visualization contains no external libraries or JavaScript; it relies solely on the browser’s built-in SVG rendering. The circle is centered at the origin of the SVG coordinate system, so it appears in the top-left corner of the page. The code defines the circle element with an `r` attribute but no `cx` or `cy`, resulting in a default position of (0,0).