fieker-DuValspielwiese
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Last change
on this file since 5071cc was
866f78,
checked in by Hans Schönemann <hannes@…>, 25 years ago
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*hannes: more subst examples/error
git-svn-id: file:///usr/local/Singular/svn/trunk@3619 2c84dea3-7e68-4137-9b89-c4e89433aadc
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-
Property mode set to
100644
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File size:
709 bytes
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| 1 | // |
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| 2 | // test script for subst command |
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| 3 | // |
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| 4 | pagelength = 10000; |
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| 5 | ring r1 = 0,(x,y,z),dp; |
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| 6 | r1; |
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| 7 | "-------------------------------"; |
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| 8 | poly s1=x2+z3+x+2y+2z; |
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| 9 | s1; |
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| 10 | subst(s1,x,2); |
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| 11 | "-----------------------------"; |
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| 12 | vector v=[x2,x,0,y2]; |
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| 13 | v; |
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| 14 | subst(v,y,8); |
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| 15 | "----------------------------"; |
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| 16 | ideal i=s1,z3; |
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| 17 | i; |
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| 18 | subst(i,z,-2); |
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| 19 | "----------------------------"; |
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| 20 | module m=v,[0,x2,y2]; |
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| 21 | int a=4; |
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| 22 | m; |
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| 23 | subst(m,x,a); |
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| 24 | "-----------------------------"; |
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| 25 | listvar(all); |
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| 26 | kill r1; |
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| 27 | // gmg, 17.9.99 |
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| 28 | ring r = 0,(x,y),ds; |
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| 29 | poly f = y2-2x10y-x9y3+1/4x8y5-1/8x7y7+5/64x6y9-7/128x5y11+21/512x4y13 |
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| 30 | -33/1024x3y15+429/16384x2y17+x20-715/32768xy19+x19y2+2431/131072y21; |
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| 31 | matrix Hess = jacob(jacob(f)); |
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| 32 | subst(Hess,x,0,y,0); |
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| 33 | |
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| 34 | LIB "tst.lib";tst_status(1);$; |
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