spielwiese
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Last change
on this file since 33ec11 was
2e49a5,
checked in by Olaf Bachmann <obachman@…>, 23 years ago
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* initial commit
git-svn-id: file:///usr/local/Singular/svn/trunk@5001 2c84dea3-7e68-4137-9b89-c4e89433aadc
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-
Property mode set to
100644
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File size:
544 bytes
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| 1 | LIB "tst.lib"; tst_init(); |
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| 2 | LIB "linalg.lib"; |
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| 3 | |
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| 4 | proc hilbert (int n) |
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| 5 | { |
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| 6 | matrix a[n][n]; |
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| 7 | int j; |
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| 8 | for (int i = 1; i <= n; i++) |
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| 9 | { |
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| 10 | for (j = 1; j <= n; j++) |
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| 11 | { |
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| 12 | a[i, j] = 1/(number(i) + number(j) - 1); |
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| 13 | } |
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| 14 | } |
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| 15 | return(a); |
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| 16 | } |
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| 17 | |
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| 18 | ring R = 0, x, lp; |
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| 19 | |
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| 20 | matrix h40[40][40]; |
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| 21 | h40 = hilbert(40); |
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| 22 | |
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| 23 | tst_InitTimer(); |
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| 24 | |
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| 25 | matrix i_h40 = inverse(h40); |
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| 26 | |
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| 27 | tst_ReportTimer("I"); |
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| 28 | |
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| 29 | matrix check; |
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| 30 | |
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| 31 | tst_InitTimer(); |
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| 32 | |
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| 33 | check = i_h40 * h40; |
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| 34 | |
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| 35 | tst_ReportTimer("J"); |
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| 36 | |
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| 37 | check == matrix(freemodule(40)); |
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| 38 | |
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| 39 | kill R, hilbert; |
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| 40 | |
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| 41 | tst_status(1); $ |
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