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           __   __     _____   __   __  __    __  
  ____     \ \\/ //   / ___//  \ \\/ // \ \\ / // 
 |    \\    \ ` //    \___ \\   \ ` //   \ \/ //  
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 |_|`-`      `-`'   `-----`      `-`'       `     
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Text this: Polar curves, a computer-oriented approach