Rusty iOS Calculator

An implementation of the basic iOS calculator featuring: - DMAS (division, muliplication, addition, subtraction) operations - Decimalisation - Memory of last calculation - Percentage conversion

Example

```rust use ios_calculator::{Calculator, Operator};

let mut calc = Calculator::new();

calc.submitnumber(1); calc.submitdecimal(); calc.submitnumber(2); calc.submitoperator(Operator::add()); calc.submitnumber(2); calc.submitequals();

assert_eq!( calc.output().value(), 3.2, );

asserteq!( calc.output().tostring(), "3.2", ); ```