🌐EnglishEnglishDeutschItaliano中文日本語EntityQ5204933· pop 5· linked from 163 articlesDFT matrixdiscrete Fourier Transform expressed as a matrixAvailable in 4 languages中文ItalianoGreekvia Wikidata sitelinks · CC0Connectionsblock matrixEntityinvertible matrixEntityCategoriesDigital signal processingFourier analysisMatrices (mathematics)