noun
square wave
Technical term in electronics and signal processing for a periodic waveform that alternates between two fixed levels.
方形波はデジタル回路でよく使われる。
Square waves are often used in digital circuits.
三角波 is a triangle wave, which linearly rises and falls, unlike the sharp on/off of a square wave.
Compound of 方形 (square shape) and 波 (wave), directly describing the waveform's shape.