The sine wave or sinusoid is a function that occurs often in mathematics, music, physics, signal processing, audition, electrical engineering, and many other fields.
The sine wave is a function. Sinusoid is a function. This function occurs often in mathematics. This function occurs often in music. This function occurs often in physics. This function occurs often in signal processing. This function occurs often in audition. This function occurs often in electrical engineering. This function occurs often in many other fields.