Answer 1

Smart swifty solution, an extension of UITextField

extension UITextField { var floatValue : Float { let numberFormatter = NumberFormatter() numberFormatter.numberStyle = .decimal let nsNumber = numberFormatter.number(from: text!) return nsNumber == nil ? 0.0 : nsNumber!.floatValue } }

And use String(format rather than .description

ResultForSquare.text = String(format: "%.2f", LengthForSquare.floatValue * WidthForSquare.floatValue)

If the locale matters use also NumberFormatter to convert Float to String

Note: Please conform to the naming convention that variable names start with a lowercase letter.