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  _____      ___      _  __    _____    ______   
 / ____||   / _ \\   | |/ //  |  ___|| |      \\ 
/ //---`'  / //\ \\  | ' //   | ||__   |  --  // 
\ \\___   |  ___  || | . \\   | ||__   |  --  \\ 
 \_____|| |_||  |_|| |_|\_\\  |_____|| |______// 
  `----`  `-`   `-`  `-` --`  `-----`  `------`

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Text this: Flash-based interactive learning of fundamental fourier analysis