Software Developed by GnuWin32
GnuWin32: Calc v.2.11.10.1
Calc is an interactive calculator which provides for easy large numeric calculations, but which also can be easily programmed for difficult or long calculations.
GnuWin32: Bc v.1. 6. 2002
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.