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7.7.1.0. linReduce
Procedure from library bfun.lib (see bfun_lib).
- Usage:
- linReduce(f, I [,s,t,u]); f a poly, I an ideal, s,t,u optional ints
- Return:
- poly or list, linear reductum (over field) of f by elements from I
- Purpose:
- reduce a polynomial only by linear reductions (no monomial multiplications)
- Note:
- If s<>0, a list consisting of the reduced polynomial and the coefficient
vector of the used reductions is returned, otherwise (and by default)
only reduced polynomial is returned.
If t<>0 (and by default) all monomials are reduced (if possible),
otherwise, only leading monomials are reduced.
If u<>0 (and by default), the ideal is linearly pre-reduced, i.e.
instead of the given ideal, the output of linReduceIdeal is used.
If u is set to 0 and the given ideal does not equal the output of
linReduceIdeal , the result might not be as expected.
- Display:
- If
printlevel =1, progress debug messages will be printed,
if printlevel>=2, all the debug messages will be printed.
Example:
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