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  exact calculation (via \code{\link{svd}}) is also likely to be quick
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  exact calculation (via \code{\link{svd}}) is also likely to be quick
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  enough.
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  enough.
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  Note that the 1- and Inf-norm condition numbers are much faster to
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  Note that the 1- and Inf-norm condition numbers are much faster to
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  calculate, and \code{rcond()} computes these \emph{\bold{r}eciprocal}
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  calculate, and \code{rcond()} computes these \emph{\bold{r}eciprocal}
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  condition numbers, also for complex matrices, using standard Lapack
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  condition numbers, also for complex matrices, using standard LAPACK
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  routines.
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  routines.
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  \code{kappa} and \code{rcond} are different interfaces to
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  \code{kappa} and \code{rcond} are different interfaces to
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  \emph{partly} identical functionality.
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  \emph{partly} identical functionality.
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