SVG Fundamentals
This example demonstrates a simple SVG visualization created with D3.js, displaying fifteen circles arranged horizontally with a sinusoidal vertical offset. The code uses D3's `select` and `range` functions to append an SVG canvas to the page and generate the circle elements. Each circle is positioned with an `x` coordinate proportional to its index and a `y` coordinate calculated using the sine of the index, creating a wave-like pattern. The visualization relies on SVG attributes for circle radius and coordinates, rendered directly in the browser using D3's declarative API.