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

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Text this: Selisih fungsi-fungsi semikontinu terbatas