If you’ve got a value you plan on using multiple times on various other numbers but don’t want to type it in over and over, that’s where the Memory buttons can come in handy. But one useful set of functions only available in scientific-calculator mode contains the Memory buttons (memory clear add subtract and recall): You correct your mistake by choosing “4” (multiplication button reverts to orange again):Īnd you get the correct value when you press the equal sign:Īnd now, here’s that second trick: Turn your iPhone sideways to get the scientific calculator, with a ton of operations most of us don’t use. Note how the “C” changes back to “AC” the three value changes to zero and the multiplication button turns back to white to remind you of your chosen operation: Remember how the clear button changed from “AC” to “C”? You can press it now to clear the last value you entered (three) instead of starting over. You hit the multiplication button (note how it remains white to indicate which operation you selected):Īnd then, you accidentally hit the “3” button instead of the “4” button you wanted (note the multiplication turns back to orange by the way): You type in the “25” – note how the “AC” (for “all clear”) button changes to just “C” (for “clear”): Let’s say you plan on multiplying 25 by four. While our foundation is a transaction register, we built many financial tools on top of that such as a Bill Tracker, Budgeting Tools, Reports, Investment Portfolio, Saving Goal Tracker and more. ClearCheckbook is your all encompassing financial management tool. The iPhone calculator can do the exact same thing, all via one button, that changes notation depending on the situation. We're more than a simple transaction register. “Clear” is used to erase all the info you’ve typed into the calculator and start again with a fresh calculation, while “clear entry” is used to erase just the last value you punched into your calculator. keys are used when you need to delete other data.

Remember how physical calculators often have two different buttons for clearing information – the “C” and “CE” buttons? Those stand for “clear” and “clear entry,” respectively. Mastering the calculator using the Texas TI-30XIIB and TI-30XIIS.

(Note I didn’t say, “…or iPad.” There’s no calculator app on the iPad. These might fall in the “I already knew that” category, but for the few people who weren’t aware, here are a couple of tricks you can do with the Calculator app on your iPhone.

How to clear a calculator