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Ch-3.5-exam-1-Revised-이승진
2291 days ago by matrix
A=matrix(4, 4, [1, 2, -2, 1, -1, 1, 2, 1, -1, -2, 0, 0, 1, 0, 1, -1 ]) b=matrix(4,1,[1,-2,5,1]) Ai=A.inverse() print Ai print Ai*b
[ 6/5 2/5 7/5 8/5] [-3/5 -1/5 -6/5 -4/5] [ 1/5 2/5 2/5 3/5] [ 7/5 4/5 9/5 6/5] [ 9] [-7] [ 2] [10]
[ 6/5 2/5 7/5 8/5] [-3/5 -1/5 -6/5 -4/5] [ 1/5 2/5 2/5 3/5] [ 7/5 4/5 9/5 6/5] [ 9] [-7] [ 2] [10]