README

# redcas - R interface to REDUCE

This initial version can start an interactive REDUCE session, send REDUCE commands to the session, retrieve and format the output of those commands and close the session. Any REDUCE command which does not require user interaction may be executed and the output is returned as a character vector or list of character vectors. There are also two specialized functions which format: asltx produces LaTeX and redSolve returns the output of the REDUCE solve operator as a custom R object.

# System Requirements In order to use `redcas` on Linux either the CSL or PSL dialect must be installed and in the search path. For MacOS, only CSL is available. There are other options besides the search path for finding the REDUCE executable - see the documentation for `redStart()` for details. REDUCE is available from http://www.reduce-algebra.com and has been tested with versions >=6339.

# Installation

Installation is done in the usual way:

`install.packages("redcas")`

`redcas` can be installed even if there is no REDUCE installation, but cannot be used.

# Testing

The package `redcas` comes with 328 tests. if no REDUCE installation is present 46 tests involving only R code will be executed which the remaining 282 will be skipped. A summary of the test results are contained in the file `99-test-results.Rout` in the test output directory.