pulse train | pulse wave | Rademacher function

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. The square wave illustrated above has period 2 and levels -1/2 and 1/2. Other common levels for square waves include (-1, 1) and (0, 1) (digital signals).

boxcar function | Hadamard matrix | Heaviside step function | rectangle function | sawtooth wave | triangle wave | Walsh function