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exteriorPower(...,Strategy=>...) -- choose between Bareiss, Cofactor and Dynamic algorithms



The ring of M determines the default strategy. If the ring is a polynomial ring or a field (as identified by isField) then the Bareiss algorithm is used. If the ring is a quotient ring (which has not been declared a field by toField), then the Cofactor algorithm is used.The Dynamic algorithm implements a variant of cofactor expansion that caches intermediate results. This strategy introduces some memory overhead, but can be faster than Cofactor, especially with sparse matrices of low degree.

Further information


The Bareiss algorithm returns a ring element that may differ from the actual determinant by a zero divisor in the ring. Thus, an incorrect answer may be computed if the ring contains zero divisors.

See also

Functions with optional argument named Strategy :