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

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Text this: Zeros of linear phase FIR filter with piecewise constant frequency response