invsqrt: Return inverse square root of square positive-definite...
In haghbinh/sfar: Seasonal Functional Autoregressive Models

Return inverse square root of square positive-definite matrix.

1	invsqrt(A)

`A`	a numeric matrix

inverse square root of square positive-definite matrix.

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require(Rsfar)
X <- Bdiag(matrix(1:4,2,2), 3)
invsqrt(t(X) %*% X)

haghbinh/sfar documentation built on May 22, 2021, 2:01 p.m.

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