Question

I have made a calculator for simple operations but I cant figure out how should I add the operator signs next to the numerals that I am entering.

I created 2 functions 1 on the number being entered

   -(IBAction)buttonDigitPressed:(id)sender

and another for the operation

-(IBAction)buttonOperationPressed:(id)sender. 

calculatorScreen.text = [NSString stringWithFormat:@"%.2f",result];

This is for the result to be shown on the label calculatorScreen.

The result i would like would be something like “1+2*3/4” on the calculatorScreen.

Answer 1

Sorry if I misunderstand your question, but what you want is to display on your calculator app the full equation that you’ve input thus far (e.g. 63+42-62).

Like any other calculator, you should have 2 label, one for your current input, and one to show all that you’ve entered.(I’m guessing you need the latter)

With the second label up, you can add in the append function into your digitpressed, enter/= function, operation function. If you want to tweak it such 16+23-32 will show up as
1) 16+23
2) 39-32
3) 39-32=7

then you’ll have to add in your own specific code. otherwise the label will input as 16+23-32 = 7