spielwiese
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Last change
on this file since bf8015 was
891438c,
checked in by Gerhard Pfister <pfister@…>, 23 years ago
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*GP: initial release
git-svn-id: file:///usr/local/Singular/svn/trunk@5579 2c84dea3-7e68-4137-9b89-c4e89433aadc
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-
Property mode set to
100644
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File size:
572 bytes
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| 1 | LIB "tst.lib"; |
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| 2 | tst_init(); |
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| 3 | |
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| 4 | proc tensorMaps(matrix M, matrix N) |
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| 5 | { |
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| 6 | int r=ncols(M); |
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| 7 | int s=nrows(M); |
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| 8 | int p=ncols(N); |
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| 9 | int q=nrows(N); |
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| 10 | int a,b,c,d; |
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| 11 | matrix R[s*q][r*p]; |
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| 12 | for(b=1;b<=p;b++) |
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| 13 | { |
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| 14 | for(d=1;d<=q;d++) |
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| 15 | { |
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| 16 | for(a=1;a<=r;a++) |
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| 17 | { |
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| 18 | for(c=1;c<=s;c++) |
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| 19 | { |
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| 20 | R[(c-1)*q+d,(a-1)*p+b]=M[c,a]*N[d,b]; |
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| 21 | } |
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| 22 | } |
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| 23 | } |
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| 24 | } |
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| 25 | return(R); |
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| 26 | } |
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| 27 | |
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| 28 | ring A=0,(x,y,z),dp; |
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| 29 | matrix M[3][3]=1,2,3,4,5,6,7,8,9; |
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| 30 | matrix N[2][2]=x,y,0,z; |
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| 31 | print(M); |
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| 32 | |
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| 33 | print(N); |
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| 34 | |
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| 35 | print(tensorMaps(M,N)); |
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| 36 | |
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| 37 | |
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| 38 | tst_status(1);$ |
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