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RosettaCodeData/Task/Matrix-arithmetic/PARI-GP/matrix-arithmetic-2.pari
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2013-04-10 22:43:41 -07:00

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matperm(M)=my(n=#M,t);sum(i=1,n!,t=numtoperm(n,i);prod(j=1,n,M[j,t[j]]))
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