Describir: Understanding the hiperbolic paraboloid ..

 _    _     _____     _____    __   __               ___      _____   
| || | ||  |  ___||  / ____||  \ \\/ //   ____      / _ \\   |__  //  
| || | ||  | ||__   / //---`'   \ ` //   |    \\   | / \ ||    / //   
| \\_/ ||  | ||__   \ \\___      | ||    | [] ||   | \_/ ||   / //__  
 \____//   |_____||  \_____||    |_||    |  __//    \___//   /_____|| 
  `---`    `-----`    `----`     `-`'    |_|`-`     `---`    `-----`  
                                         `-`                          
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  / _ \\  
 / //\ \\ 
|  ___  ||
|_||  |_||
`-`   `-`