PowerCalc

PowerCalc is inspired by the Hewlett-Packard calculators, using RPN logic.

User guide: https://sites.google.com/view/powercalc-user-guide/home

Be warned, if you are looking for a "normal" calculator and you have no idea how an HP calculator works or what Reverse Polish Notation (RPN) is, then you may need a couple of hours to get used to the new way of thinking when operating this calculator. However, many who tried RPN prefer how this system makes it easier to organize a calculation, store intermediate results, and to make programs. Google "RPN tutorial" and get started, don't complain that this isn't a normal calculator.

Features include:
* RPN logic (Yep! And no alternative is forthcoming)
* 300+ mathematical functions and operations (reach all of them in max 4 taps)
* Programmable
* Draw, integrate, differentiate and solve your programs
* Complex numbers
* Matrices
* Calculate with and combine 120+ units and convert between them
* Binary, Octal and Hexadecimal number representation
* High precision (16+ digits), wide range numbers (10¹⁰⁰⁰⁰⁰⁰⁰⁰)
* Scientific constants with units
* Statistics with curve fitting and graphing
* Financial calculations
* Flick between multiple stacks
* Export and import results, memory, programs and more via clipboard
* Press and hold any button for help