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[[2/3,2/3,-1/3],[1/sqrt(2),-1/sqrt(2),0],[1/(3*sqrt(2)),1/(3*sqrt(2)),4/(3*sqrt(2))]]*transpose([[2/3,2/3,-1/3],[1/sqrt(2),-1/sqrt(2),0],[1/(3*sqrt(2)),1/(3*sqrt(2)),4/(3*sqrt(2))]])
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