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- % ***** Example 1 *****
- g:=invbase{4*x^2 + x*y^2 - z +1/4,
- 2*x + y^2*z + 1/2,
- x^2*z - 1/2*x - y^2};
- h:=invlex g;
- % ***** Example 2 *****
- on trinvbase$
- invtorder revgradlex,{x,y,z}$
- g:=invbase{x^3 + y^2 + z - 3,
- y^3 + z^2 + x - 3,
- z^3 + x^2 + y - 3};
- h:=invlex g;
-
- % ***** Example 3 (limited by the degree bound) *****
- invtorder revgradlex,{x,z,y,t}$
- k:=5$
- on errcont$
- invbase{x^(k+1)-y^(k-1)*z*t,
- x*z^(k-1)-y**k,
- x^k*y-z^k*t};
- invtempbasis;
- end$
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