This visualization displays seven notable mathematical constants—such as π, e, and √2—as circles positioned along a linear scale representing their numeric values. The chart uses D3 v5 with SVG rendering, employing `scaleLinear` for the x-axis and `scaleBand` for the categorical y-axis, with dashed grid lines extending from each tick. Data is loaded from a CSV file containing names and numeric properties, and the circles are styled in deeppink with a titled header. The design builds on a prior bar chart example, replacing bars with circles to emphasize the proportional differences among the constants.