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7.7.7.0. lp2ivId
Procedure from library fpadim.lib (see fpadim_lib).
- Usage:
- lp2ivId(G); G an ideal
- Return:
- list
- Purpose:
- Converting an ideal into an list of intmats,
the corresponding intvecs forming the rows.
For the encoding of the variables see the overview.
- Assume:
- - basering has to be a Letterplace ring
Example:
| | LIB "fpadim.lib";
ring r = 0,(x,y,z),dp;
def R = makeLetterplaceRing(5); // constructs a Letterplace ring
setring R; // sets basering to Letterplace ring
poly p = x(1)*x(2)*z(3); poly q = y(1)*y(2)*x(3)*x(4);
poly w = z(1)*y(2)*x(3)*z(4);
// p,q,w are some polynomials we want to transform into their
// intvec representation
ideal G = p,q,w;
// define the ideal containing p,q and w
lp2ivId(G); // and return the list of intmats for this ideal
==> [1]:
==> 1,1,3
==> [2]:
==> 2,2,1,1,
==> 3,2,1,3
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