https://github.com/cran/pracma
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Tip revision: 26e049d70b4a1c237987e260cba68f6a9413736c authored by Hans W. Borchers on 09 April 2019, 04:10:07 UTC
version 2.2.5
Tip revision: 26e049d
eig.R
###
### EIG.R  Eigenvalues
###


eig <- function(a) {
    if (length(a) == 0) return(matrix(0, nrow=0, ncol=0))
    if (length(a) == 1) return(a)
    if ((!is.numeric(a) && !is.complex(a)) || !is.matrix(a))
        stop("Argument 'a' must be a numeric or complex matrix.")
    if (nrow(a) != ncol(a))
        stop("Matrix 'a' must be square matrix.")

    eigen(a, only.values=TRUE)$values
}
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