vCalc 1.0

vCalc is an advanced scientific calculator built on the Reverse Polish notation used on well-known handheld calculators.
Its keyboard driven interface has been thoughtfully designed to be both easy to learn and fast to use.
vCalc supports a complete set of scientific operations, binary math in hexadecimal and octal, and has a sophisticated statistics engine that is designed to be robust, even with difficult datasets.
vCalc also supports 100 memory registers, has a 10-level "undo" feature, and has the ability to save and load data to disk.
Main features:
- 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
Version restrictions:
- 21 days trial.