Ryacas is an R interface to the free yacas computer algebra system. Ryacas allows one to send R expressions, unprocessed yacas strings and certain other R objects to a separate yacas process from R and get back the result. It also has facilities for manipulating yacas strings and R expressions destined for yacas processing.
It can be used for exact arithmetic, symbolic math, ASCII pretty printing and translating R to TeX. Online info. For overview, pointers to additional information, installation instructions and a sample session see: http://code.google.com/p/ryacas/ The vignettes can be viewed online here: http://ryacas.googlecode.com/svn/trunk/inst/doc/Ryacas.pdf http://ryacas.googlecode.com/svn/trunk/inst/doc/Ryacas-Sym.pdf More. Once Ryacas is installed, pointers to additional information can be found with these R commands: library(Ryacas) package?Ryacas --- Rob Goedman, goedman at mac dot com Gabor Grothendieck, ggrothendieck at gmail dot com Søren Højsgaard, Soren.Hojsgaard at agrsci dot dk Ayal Pinkus, apinkus at xs4all dot nl _______________________________________________ R-packages mailing list R-packages@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-packages ______________________________________________ R-help@stat.math.ethz.ch 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.