CC4 is version 4 of the Calculus Calculator. Its
predecessor, CC3, is no longer a shareware product. It has been
published, with a 200 page manual, by Prentice Hall as CC -
The Calculus Calculator.
CC4 includes matrices and infinite precision
arithmetic. Information about the program can be found in the
file Update.CC (information about changes from CC) and in the
help file, which is accessed by pressing F1 after starting CC4.
This is a beta version.
(from the READ.ME file)