A lot vs. Alot: 9 Grammatical Pitfalls
A GNU version of BC which is self-contained and internally executes its own compiled code rather than acting as a front-end to DC like the standard Unix bc.
parser (yacc), interpreter, BC math library
Philip A. Nelson
FTP bc-1.02.tar.Z from a GNU archive site.
requires: vsprintf and vfprintf routines
ports: Unix (BSD, System V, MINIX, POSIX) Superset of POSIX BC (P10003.2/D11), with a POSIX-only mode.