fieker-DuValspielwiese
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Last change
on this file since e74bb4 was
8a2e90,
checked in by Hans Schoenemann <hannes@…>, 6 years ago
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fix: module * module is undefined
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-
Property mode set to
100644
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File size:
459 bytes
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| 1 | LIB "tst.lib"; tst_init(); |
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| 2 | LIB "control.lib"; |
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| 3 | // a trivial example: |
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| 4 | ring r = 0,(x,z),dp; |
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| 5 | matrix M[2][1] = 1,x2z; |
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| 6 | print(M); |
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| 7 | print( leftInverse(M) ); |
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| 8 | kill r; |
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| 9 | // derived from the example TwoPendula: |
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| 10 | ring r=(0,m1,m2,M,g,L1,L2),Dt,dp; |
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| 11 | matrix U[3][1]; |
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| 12 | U[1,1]=(-L2)*Dt^4+(g)*Dt^2; |
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| 13 | U[2,1]=(-L1)*Dt^4+(g)*Dt^2; |
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| 14 | U[3,1]=(L1*L2)*Dt^4+(-g*L1-g*L2)*Dt^2+(g^2); |
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| 15 | module M = module(U); |
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| 16 | module L = leftInverse(M); |
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| 17 | print(L); |
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| 18 | // check |
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| 19 | print(matrix(L)*matrix(M)); |
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| 20 | tst_status(1);$ |
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