(maxima.info)Package scifac
81.7 Package scifac
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-- Function: gcfac (<expr>)
'gcfac' is a factoring function that attempts to apply the same
heuristics which scientists apply in trying to make expressions
simpler. 'gcfac' is limited to monomial-type factoring. For a
sum, 'gcfac' does the following:
1. Factors over the integers.
2. Factors out the largest powers of terms occurring as
coefficients, regardless of the complexity of the terms.
3. Uses (1) and (2) in factoring adjacent pairs of terms.
4. Repeatedly and recursively applies these techniques until the
expression no longer changes.
Item (3) does not necessarily do an optimal job of pairwise
factoring because of the combinatorially-difficult nature of
finding which of all possible rearrangements of the pairs yields
the most compact pair-factored result.
'load ("scifac")' loads this function. 'demo ("scifac")' shows a
demonstration of this function.
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