> Why and/or how are sine waves relevant to non-geometric data? The universe likes sine waves. If you hang a weight from a spring and give it a yank, it will b

> Why and/or how are sine waves relevant to non-geometric data? The universe likes sine waves. If you hang a weight from a spring and give it a yank, it will bob up and down according to a sine wave. Lots of resonating and oscillating things are also governed by sine waves. So scientists and engineers are forced by circumstance to learn all about sine waves.