發送短信 : Defining relations of invariants of two 3 × 3 matrices

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