[R] Ryacas

[Gabor Grothendieck]

On Tue, Sep 4, 2012 at 2:34 PM, Jason Romine <jromine at usgs.gov> wrote:
> I am having issues with Ryacas errors.  I searched and found this error was
> reported in 2006, but nothing since.
>

It works for me on my Windows Vista laptop.  Suggest you review the
toubleshooting section on the home page
http://ryacas.googlecode.com/#TROUBLESHOOTING

> library(Ryacas)
Loading required package: XML
> library(Ryacas)
> yacas(expression(Factor(x^2-1)))
[1] "Starting Yacas!"
expression((x + 1) * (x - 1))
>   yacas("D(x)Sin(x)")
expression(cos(x))
>
>    x <- Sym('x')
>   (x+1) * (x-1)
expression((x + 1) * (x - 1))


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