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C++ API

: det (A)

: [d, rcond] = det (A)

Compute the determinant of A.

Return an estimate of the reciprocal condition number if requested.

Programming Notes: Routines from LAPACK are used for full matrices and code from UMFPACK is used for sparse matrices.

The determinant should not be used to check a matrix for singularity. For that, use any of the condition number functions: cond, condest, rcond.

See also: cond, condest, rcond.

Package: octave