RPNcalc-15c 2.1

The RPNcalc-15 is a full featured high end scientific RPN calculator with support for complex numbers and matrix math.

Main features:

- Scientific number format.

- Engineering number format.

- Integer truncation and absolute value.

- Trigonometric and inverse trigonometric functions.

- Hyperbolic and inverse hyperbolic trigonometric functions.

- Trigonometric modes (degrees, radians, grads).

- Combinations and permutations.

- Polar and rectangular permutations.