This is done through Fourier analysis I believe, where a string of rotating vectors can be used to draw any picture. Or you could say that any periodic waveform can be interpreted as the sum of sine functions.

@The Next Guy, let me see if I understand this. Basically you can draw anything with a series of rotating circles because everything can be broken down into sine functions. Is that right or did is misinterpret something?

@jayne cobb, that’s the idea, though the full scale interpretation of it requires added info. There might be limitations on how applicable it is. Like if it were a more complicated picture.

This is done through Fourier analysis I believe, where a string of rotating vectors can be used to draw any picture. Or you could say that any periodic waveform can be interpreted as the sum of sine functions.