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Macaulay2Doc :: minors(..., Strategy => ...)

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

Synopsis

Description

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.

Further information

Caveat

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