How do you find the harmonic of a square wave?

This is the basis of Fourier analysis. A square wave consists of a fundamental sine wave (of the same frequency as the square wave) and odd harmonics of the fundamental. The amplitude of the harmonics is equal to 1/N where N is the harmonic (1, 3, 5, 7…).

A square wave function, also called a pulse wave, is a periodic waveform consisting of instantaneous transitions between two levels . We consider two cases of square waves that include the digital signal (0,1) and oscillation between (-1,1). Other common levels for the square wave includes -½ and ½.

The square wave, also called a pulse train, or pulse wave, is a periodic waveform consisting of instantaneous transitions between two levels . The square wave is sometimes also called the Rademacher function.