An RPN calculator, loosely based on the ancient HP16c programmers calculator. If you dont know what RPN is, this probably isnt the right calculator for you.
It can display and convert between any of the common number bases -- binary, octal, decimal, hexidecimal -- as well as ASCII.
32-bit integer arithmetic, C double precision floating point.
Displays all four elements of the stack with room to see all 32 bits in binary mode.
Many bitwise integer functions ("and", "or", "xor" "not", shift, rotate, set bit, clear bit, etc.).
Floating-point functionality includes square root, reciprocal, y-to-the-x, and trigonometric and logarithmic functions.