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7.7.2.0. linSyzSolve
Procedure from library bfun.lib (see bfun_lib).
- Usage:
- linSyzSolve(I[,s]); I an ideal, s an optional int
- Return:
- vector, coefficient vector of linear combination of 0 in elements of I
- Purpose:
- compute a linear dependency between the elements of an ideal
if such one exists
- Note:
- If s<>0,
std is used for Groebner basis computations,
otherwise, slimgb is used.
By default, slimgb is used in char 0 and std in char >0.
- Display:
- If printlevel=1, progress debug messages will be printed,
if printlevel>=2, all the debug messages will be printed.
Example:
| | LIB "bfun.lib";
ring r = 0,x,dp;
ideal I = x,2x;
linSyzSolve(I);
==> gen(2)-2*gen(1)
ideal J = x,x2;
linSyzSolve(J);
==> 0
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