Contribute correction: Delta - Analytic Function Tracer

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