Calc for func

Calc for func is a free, easier to learn and use scientific calculator.
Calc for func includes the following features:
- complex numbers
- unlimited number of variables;
- contains a math handbook (see help);
- save/open your functions to SD-card;
- Physical constants table (see help);
- Graphs maker;
- Simple mode;
- Linear systems;
- Square and cubic equations;
- The ability to calculate several functions with shared variables at the same time;
- The ability to use memory cells in functions;