Nowadays, the smartphone plays such an important role in our lives because it is practical in many areas. It improves efficiency for whatever I need it for. It is with me wherever I go. Out of all the functions my phone can do, being a calculator is one of the best!

I tutor science to students privately and I also teach Olympiad preparation in my high school, both of them need a lot of calculations that require calculators. The problem is that my students I teach don’t have a calculator. Weirdly enough however, they all have phones, Android phones to be exact, ah… these kids.

The normal calculator in your phone is okay for basic calculation. For complex math and physics however, a scientific calculator is a must. From all of the calculators available in the market, I definitely recommend Graphing Calculator by Mathlab. Since its size is only 1.39 MB, it doesn’t even take a minute to download.

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