Programmer Guide/Command Reference/EVAL/qdet: Difference between revisions
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In linear algebra and statistics, the pseudo-determinant[1] is the product of all non-zero eigenvalues of a square matrix. It coincides with the regular determinant when the matrix is non-singular. | |||
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=====qdet===== | =====qdet===== | ||
Revision as of 10:00, 8 April 2011
In linear algebra and statistics, the pseudo-determinant[1] is the product of all non-zero eigenvalues of a square matrix. It coincides with the regular determinant when the matrix is non-singular.
Contents
qdet
Computes the quasi-determinant of the square matrix x. x can also be a singular matrix.
Usage:
qdet(x)
Result:
The quasi-determinant of x.
Return Type:
a scalar
