Traveling circular wave z = sin(r − 3t)

Equation: z = sin(sqrt(x^2 + y^2) - t * 3)

The wave phase is r − 3t. A surface of constant phase moves outward at speed dr/dt = 3.

Play the animation to watch rings crawl across the mesh. This is a monochromatic circular wave with no amplitude decay.

Related surfaces

• Concentric ripplesz = sin(sqrt(x^2 + y^2))
• Damped ripplez = exp(-0.12 * sqrt(x^2 + y^2)) * sin(sqrt(x^2 + y^2) - t * 4)
• Dual-source interferencez = sin(sqrt((x - 4)^2 + y^2) - t * 3) + sin(sqrt((x + 4)^2 + y^2) - t * 3)