Calculate the Determinant of a Matrix

Description

det calculates the determinant of a matrix either by QR decomposition or from the eigenvalues, see qr and eigen.

Usage

det(x, method = c("qr","eigenvalues"))

Arguments

Note

Often, computing the determinant is not what you should be doing to solve a given problem.

The "qr" method is much faster for large matrices.

See Also

eigen, qr, svd

Examples

(x <- matrix(1:4, ncol=2))
det(x)
det(x, method="eigenvalues")

det(print(cbind(1,1:3,c(2,0,1))))