Solved:  it's in the Ryacas vignette:

> yacas("Solve(1-(R/100) == (2*y)/10000,R)")
expression(list(R == 100 * (1 - 2 * y/10000)))
>


On Tue, Jun 18, 2013 at 11:33 PM, Erin Hodgess <erinm.hodgess@gmail.com>wrote:

> Dear R People:
>
> I have the following equation:
> $1 - \frac{R}{100} = \frac{2y}{10000}$
> and I was wondering if there was a way in R to solve for R (no pun
> intended).
>
> I'm experimenting with Ryacas, but nothing yet.
>
> Version R-3.0.1 on Windows 7.
>
> Thanks,
> Erin
>
>
> --
> Erin Hodgess
> Associate Professor
> Department of Computer and Mathematical Sciences
> University of Houston - Downtown
> mailto: erinm.hodgess@gmail.com
>



-- 
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodgess@gmail.com

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