Is it possible to set the UILabel's text to a string that isn't displayString? I tried to do that in the convert method and while it would log in my NSLog, it wouldn't show in my IOS simulator. I did
NSMutableString *str = [NSMutableString stringWithFormat:"%f", result];
// I calcualted result as the converToNum double of myCalculator.accumulator
I then tried to set str to the display's text but it wouldn't work that way. It only worked if I stored the result in displayString and then set the text of display to it. Why exactly am I forced to use displayString and not an arbitrary string for display?