Simple expression solver for iOS and macOS.

Install with Crathage:

github "Rollncode/calculator"

Supported operators

Here is the list of currently supported operators and operations in the order of applying.

• Round brackets (also supporting nested brackets)
• Unary minus
• Unary plus
• Multiplication
• Division
• Subtraction
• Addition

And by the way, spces, tabs and other spacing symbols are ignored.

Using

let calc = Calculator()

let _ = calc.solve("(2 + 3) * 4") //20

let _ = calc.solve("-1 + ((2 + 3) * 4) / 2 + 2*3") //16

For more usecases please see tests.