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yacas
2 messages · Hassan Mohamed, Gabor Grothendieck
You haven't provided any code so we have no idea what the problem is. Make sure you have read the troubleshooting sections on the home page? http://ryacas.googlecode.com Here is an example:
library(Ryacas)
Loading required package: XML
x <- Sym("x")
Factor(x^2-1)
[1] "Starting Yacas!" expression((x + 1) * (x - 1)) You can also try the rSymPy package. Installation has fewer gotchas:
library(rSymPy)
Loading required package: rJava
sympy("var('x')") # define x to be symbolic
[1] "x"
sympy("factor(x**2-1)")
[1] "-(1 + x)*(1 - x)" See home page at http://rsympy.googlecode.com On Tue, May 5, 2009 at 6:41 PM, Hassan Mohamed
<hassan_hany_fahmy at yahoo.com> wrote:
Hi, as I find problems with yacas package... is there any R function equivalent to the yacas function "Factor" ? the factor function which i found in the R help is not the same. it doesn't factor an algebraic expression...... thanks hassan ? ? ? ?[[alternative HTML version deleted]]
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