What is "sinusoidally"

Usage examples of "sinusoidally".

And we will vary an amplitude, sinusoidally, parabolically, exponentially, and present a succession of prime numbers.

Undulating sinusoidally across the foreground, they resembled the half-submerged spiny torso of some gigantic, lazy sea serpent that seemed to stretch toward both horizons, blocking his panorama of the purple plane.