xmaxima 5.9.2-2ubuntu1 (amd64 binary) in ubuntu dapper

 Maxima is a full symbolic computation program. It is full featured
 doing symbolic manipulation of polynomials, matrices, rational
 functions, integration, Todd-coxeter, graphing, bigfloats. It has a
 symbolic debugger source level debugger for maxima code. Maxima is
 based on the original Macsyma developed at MIT in the 1970's. It is
 quite reliable, and has good garbage collection, and no memory leaks.
 It comes with hundreds of self tests.
 .
 This package contains an X Windows interface using the tcl/tk
 libraries.