Contribute correction: Delta - Analytic Function Tracer

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