VCalc is a keyboard driven scientific calcualtor, that works using the RPN notation common in well known scientific calculators. It supports a complete set of math, binary and statistical operations.

* Keyboard driven user interface * Four basic operations on integer and floating point numbers * 100 memory registers with a real time watch capability * Exponent, Square Root, %, %T, and Delta % * Sine, Cosine, Tangent, and their inverses * Log and antilog in bases 10, e, and 2. * Floor, Ceiling, Truncate, Round, and Absolute Value * Factorial/Gamma Function * 1 and 2 variable statistics with multiple concurrent datasets * Mean, Standard Deviation, Covariance, Population Covariance, Sum * Curve Fitting (Linear, Logarithmic, Exponential, and Power) * Support for 64-bit integer math with bitwise AND, OR, XOR, and NOT * Display and entry of integers in decimal, hexadecimal, and octal * Save and Load to disk * Clipboard Cut, Copy, and Paste * IEEE-754 compliant math