[R] calculating arc length using R?
Giovanni Petris
GPetris at uark.edu
Fri Nov 14 16:14:47 CET 2003
It seems you want to integrate a function. Try
?integrate
You can do the math yourself if the function is simple, like sin(x).
Otherwise I suspect you could combine integrate with `deriv', although
you will slow down the calculations somehow (just a guess).
HTH
Giovanni
> Date: Thu, 13 Nov 2003 21:37:46 -0500
> From: Greg Trafton <trafton at itd.nrl.navy.mil>
> Sender: r-help-bounces at stat.math.ethz.ch
> Precedence: list
> User-Agent: Gnus/5.1002 (Gnus v5.10.2) Emacs/21.2 (darwin)
>
> Hi, All. I have a function I want to know the plotted length of. is it
> possible to calculate the length of the function (e.g., arc length)?
>
> for example, if I want to know the length of the line of
> sin(x) from -pi to pi, how can I do that in R?
>
> thanks!
> greg
>
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--
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[ Giovanni Petris GPetris at uark.edu ]
[ Department of Mathematical Sciences ]
[ University of Arkansas - Fayetteville, AR 72701 ]
[ Ph: (479) 575-6324, 575-8630 (fax) ]
[ http://definetti.uark.edu/~gpetris/ ]
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