R help - Nov 2010 - Exponent of sqr symmetric matrix

Dear R experts,

I really have difficulty when I try to deal with this question.

suppose X is a square symmetric matrix. The exponent of X is defined by the
matrix limit as following:
exp(X) = lim (I + X/n)^n,  note: the limit is from n to infinite.

How can I write R function for the above?

Thank you very much

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Hi:

Check out the expm package, particularly function expm().

HTH,
Dennis

On Sun, Nov 7, 2010 at 6:21 PM, zhiji19 <zhiji19@gmail.com> wrote:
>
> Dear R experts,
>
> I really have difficulty when I try to deal with this question.
>
> suppose X is a square symmetric matrix. The exponent of X is defined by the
> matrix limit as following:
> exp(X) = lim (I + X/n)^n,  note: the limit is from n to infinite.
>
> How can I write R function for the above?
>
> Thank you very much
>
> --
> View this message in context:
>
http://r.789695.n4.nabble.com/Exponent-of-sqr-symmetric-matrix-tp3031436p3031436.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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