This example animates a smooth, natural sine wave that undulates across the screen, with a line drawn through its points using a black stroke. The wave is generated from 100 data points, each positioned along the x-axis with a y-coordinate determined by a sine function that shifts over time. Built with D3 v6 in a React framework, the visualization updates every frame using `setInterval` and renders via SVG. The code employs D3’s `line` generator with a `curveNatural` interpolation and animates the wave by incrementing the phase offset `t`.