program. The program acts like a ten-digit pocket calculator, with
+, -, /, *, Square Root, Log10 and Alog10. It has a single memory with
Memory +, Memory -, Memory Read and Memory Clear functions.
The keystrokes are explained in the file CALC.C, and the executable form
of the program is in CALC.EXE. It is written in plain vanilla C without
any fancy tricks. Maybe the next step is to make it memory resident ?