Sine Wave Sum
Fourier's idea made visible: any repeating wave, even a sharp sawtooth or square, is just a stack of plain sine waves — switch the harmonics on one at a time and watch the smooth sines pile up into crisp corners.
Fourier's idea made visible: any repeating wave, even a sharp sawtooth or square, is just a stack of plain sine waves — switch the harmonics on one at a time and watch the smooth sines pile up into crisp corners.