/usr/share/doc/bc-1.06.95/ Current File: //usr/share/doc/bc-1.06.95/AUTHORS

Phil Nelson <philnelson@acm.org> wrote bc, including the number.c
source in the "lib" directory.

Ken Pizzini <ken@gnu.org> wrote dc, making use of the lib/number.c
code that Phil Nelson wrote to handle the actual multiprecision
arithmetic.