cantor-backend-r 4:4.8.1-0ubuntu1 (amd64 binary) in ubuntu precise

 Cantor is an application to allow you to you use your favorite mathematical
 applications from within an elegant KDE-integrated worksheet interface. It
 provides dialogs to assist with common tasks and allows you to share your
 worksheets with others.
 .
 This package provides the backend for using the R Project for Statistical
 Computing (http://www.r-project.org) in Cantor.
 .
 This package is part of the KDE education module.