On Sat, Jan 30, 2010 at 10:39 AM, Jennifer Young <jennifer.yo...@math.mcmaster.ca> wrote: > handling of variables in R to be very straightforward; sometimes I pine > for Maple to do my algebra for me...
There are several interfaces to Computer Algebra Systems in R. Try this (but read instructions on home page http://ryacas.googlecode.com first particularly the part about ensuring you have the right version of XML installed). Below, Sym creates a symbolic variable: > library(Ryacas) Loading required package: XML > f1 <- Sym("f1") > s1 <- Sym("s1") > Tm <- Sym("Tm") > g1 <- 1/Tm > mat <- f1 * s1 * g1 > mat [1] "Starting Yacas!" expression(f1 * s1/Tm) ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
