Secret Feature of iPhone's Calculator

iPhone’s calculator have a secret feature that you might don’t know, that is it enables t you to undo the last digit of the number that you had key in. This is very useful because you don’t have to clear all the number if you accidentally key in a wrong number during calculation.

This can be done by swiping on the number you have typed from right to left, this will help to undo or delete the last digit you had key in.

Below is the example, if I wish to key in a number  ‘388’ during caculation but I accidentally key in another ‘7’, it turn into I had key in a number ‘3887’ I can delete the last digit number by swiping the number from right to left.

This is very useful during  calculation where the you don’t have to clear all the numbers.

Swipe on the number from right to left

After swiping the last digit will be remove