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           __   __   ______    __   __            
    ___    \ \\/ // |      \\  \ \\/ //     ___   
   /   ||   \ ` //  |  --  //   \ ` //     /   || 
  | [] ||    | ||   |  --  \\    | ||     | [] || 
   \__ ||    |_||   |______//    |_||      \__ || 
    -|_||    `-`'   `------`     `-`'       -|_|| 
     `-`                                     `-`

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Text this: 2 × 2PT - Symmetric matrices and their applications