🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPortuguêsSvenskaTürkçeРусскийالعربيةفارسیहिन्दी한국어中文日本語EntityQ1136640· pop 27· linked from 241 articlessquare wavetype of non-sinusoidal waveformAvailable in 26 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةहिन्दीCatalanConnectionsfrequencyEntitysine waveEntityCategoriesFourier seriesWaveforms