Tools on Rewriting

REDUCE is an interactive system for general algebraic computations of interest to mathematicians, scientists and engineers.
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QEPCAD is an implementation of quantifier elimination by partial cylindrical algebraic decomposition due originally to Hoon Hong, and subsequently added on to by many others. It is an interactive commandline program written in C, and based on the SACLIB library of computer algebra functions. Presented here is QEPCAD B version 1, the B designating a substantial departure from the original QEPCAD and distinguishing it from any development of the original that may proceed in a different direction.
The current version of QEPCADB is Version B 1.69, 16 March 2012....