Gnubc

bc is an arbitrary precision numeric processing language. Syntax is similar to
C, but differs in many substantial areas. It supports interactive execution of
statements. bc is a utility included in the POSIX P1003.2/D11 draft standard.

 Since the POSIX document does not specify how bc must be implemented, this
version does not use the historical method of having bc be a compiler for the dc
calculator. This version has a single executable that both compiles the language
and runs the resulting `byte code'. The byte code is not the dc language.

 Online Manual is available at http://www.gnu.org/software/bc/manual/ , as well
as one for dc.