Hey,
I'm trying to find how to perform operations with a variable treated as a
symbol.
For, an extremely simple, example I want to integrate a*x with respect to x
and I want to find the indefinite integral of this, (a*x^2/2), or the
definite integral with some interval for x.
Another example of
Hi Zemajik,
Try this:
y - function(a) paste(a, '*x', sep=)
y(2)
[1] 2*x
Also, take a look at the Ryacas package.
HTH,
Jorge
On Thu, Oct 1, 2009 at 9:46 AM, ZeMajik wrote:
Hey,
I'm trying to find how to perform operations with a variable treated as a
symbol.
For, an extremely simple,
Try this:
y - function(a)
substitute(a * x, list(a = a))
On Thu, Oct 1, 2009 at 10:46 AM, ZeMajik zema...@gmail.com wrote:
Hey,
I'm trying to find how to perform operations with a variable treated as a
symbol.
For, an extremely simple, example I want to integrate a*x with respect to
Thanks guys, Ryacas is pretty much what I'm looking for!However, I can't
seem to get it to work properly.
For example:
yacas(Integrate(x) x)
Error in parse(text = text, srcfile = NULL) :
unexpected numeric constant in / (^ (x ,2 2
Same thing with expressions such as yacas(x*x)
However
Read the troubleshooting section on the home page: http://ryacas.googlecode.com
Note, in particular, that it currently only works with an older
version of the XML package.
library(Ryacas)
packageDescription(XML)$Version
[1] 1.96-0
x - Sym(x)
Integrate(x*x, x)
[1] Starting Yacas!
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