| invsqrt {Rsfar} | R Documentation |
Return inverse square root of square positive-definite matrix.
Description
Return inverse square root of square positive-definite matrix.
Usage
invsqrt(A)
Arguments
A |
a numeric matrix |
Value
inverse square root of square positive-definite matrix.
Examples
require(Rsfar)
X <- Bdiag(matrix(1:4,2,2), 3)
invsqrt(t(X) %*% X)
[Package Rsfar version 0.0.1 Index]