////////////////////////////////////////////////////////////////
//
//     http://www.planetquantum.com/Solve/Level1/Den13/Page63.txt
//
////////////////////////////////////////////////////////////////

Generator:
(C (Csc 1) (^ _E 2) 7 8 2)

Problem:
(= (cdot #[[11 88 39 51 5 77 81 21]
           [21 62 61 59 94 52 37 45]
           [51 0 35 27 82 98 34 9]
           [79 62 62 52 65 25 36 66]
           [35 91 84 36 73 57 19 4]
           [87 91 36 63 56 80 30 85]
           [30 23 24 72 47 92 85 60]]
         #[[x_1] [x_2] [x_3] [x_4] [x_5] [x_6] [x_7] [x_8]])
   #[[73] [89] [5] [60] [98] [93] [6]])

Solution:
(= #[[x_1] [x_2] [x_3] [x_4] [x_5] [x_6] [x_7] [x_8]]
   #[[-577513963752]
     [-205206924946]
     [976821211562]
     [-1561860790375]
     [-281203708184]
     [486875711472]
     [40361280324]
     [1267479100292]])