mathomatic 12.6.7-1 (i386 binary) in ubuntu feisty

 Mathomatic implements most of the rules of algebra for the
 mathematical operators +, -, *, /, and power (including roots).
 .
 Mathomatic can symbolically:
   - Solve equations;
   - Completely simplify equations;
   - Differentiate;
   - Do sensitivity and finite series analysis;
   - Combine and solve simultaneous algebraic equations;
   - Do complex number and polynomial arithmetic;
   - Generate efficient "C" code.
 .
  Homepage: http://www.mathomatic.com/