| det {base} | R Documentation |
Calculate the Determinant of a Matrix
Description
det calculates the determinant of a matrix. determinant
is a generic function that returns separately the modulus of the determinant,
optionally on the logarithm scale, and the sign of the determinant.
Usage
det(x, ...)
determinant(x, logarithm = TRUE, ...)
Arguments
x |
numeric matrix: logical matrices are coerced to numeric. |
logarithm |
logical; if |
... |
optional arguments, currently unused. |
Details
The determinant function uses an LU decomposition and the
det function is simply a wrapper around a call to
determinant.
Often, computing the determinant is not what you should be doing to solve a given problem.
Value
For det, the determinant of x. For determinant, a
list with components
modulus |
a numeric value. The modulus (absolute value) of the
determinant if |
sign |
integer; either |
Examples
(x <- matrix(1:4, ncol = 2))
unlist(determinant(x))
det(x)
det(print(cbind(1, 1:3, c(2,0,1))))