# Simple harmonic wave

From AMS Glossary

## simple harmonic wave

An oscillation translating with constant speed and amplitude, and represented mathematically by a trigonometric or complex exponential function.

Thus, or represents a simple harmonic wave of amplitude

*A*, wavelength λ, frequency ν, and phase angle φ. In ocean wave studies, a simple harmonic progressive wave is an idealized wave characterized by constant speed of propagation and a straight crest of indefinite length.*See also*wavenumber, phase speed.