This example demonstrates a single SVG circle drawn with a radius of 50 units, positioned at the center of the SVG canvas. The visualization shows the fundamental shape primitive available in SVG, with a black fill on a transparent background. The code uses the native `<svg>` and `<circle>` elements from the SVG specification, rendered directly in the browser by the HTML document. The rendering approach is static SVG output, with no additional libraries or data sources required.