People realise they’ve been using the iPhone calculator app wrong

It's one of the most used apps on the iPhone, but it turns out that many of us aren't using our phone calculator properly.

In fact, there are heaps of features in the calculator that you probably never even knew about.

Did you know that if you make one tiny mistake you don't need to hit C and start again?

Here's how you do it:

Yep, you can actually delete numbers individually, by simply swiping left or right across the display.

So you'll no longer have to erase all your calculations for one simple error.

If you're looking to save time while doing your calculations, there's a trick for that too.

You can actually copy your last result without even needing to go into the app. If you've just finished a calculation, and you've headed over to a different app, you can actually copy your last result without even going back into the calculator.

Simply tap the app, hold down, and an icon will appear with the option to copy your last figure.

While many of us think the iPhone calculator is a simple tool, it's actually got heaps of features. For example, you can also turn the app into a scientific calculator too.

To do this, first ensure that your screen orientation isn't locked, as you'll need to flip your phone lengthways to reveal the scientific buttons.

Once you've checked it's not locked, turn it on its side to access the scientific calculator - which provides exponential, logarithmic, and trigonometric functions.

jozef mikietyn/Alamy Stock Photo

The scientific calculator even has its own secret functions, too, with more features to be revealed if you simply hit the button that reads '2nd'.

And in a rather quirky feature, the scientific calculator also allows users to randomly generate numbers - which could be useful in a game for example - by hitting the 'Rand' button on the bottom right side.

If you need to switch between the standard calculator and the scientific, you can easily do that too, without losing any of your calculations.

The app will keep hold of any calculations even if you rotate into the other mode, so you won't lose any progress.

In other tech news, we recently told you how a fireman has warned why you shouldn't have your phone on charge overnight.

Panther Media GmbH/Alamy Stock Photo

In a post to TikTok, a firefighter from Kent Fire Rescue said: "We get a lot of questions here at Kent Fire Rescue about why you shouldn't charge phones overnight. So here are the reasons why.

"Number one: you can't smell anything when you're asleep, so if it starts to burn, the fire won't wake you up.

"Number two: it only takes three breaths, right, to knock you unconscious.

"Number three: lots of people have cheap or faulty phone chargers, or even genuine ones have been known start fires.

"If you're able to, we advise you to charge your phone when you're there and awake from a fire service point of view. It's much safer."