Making Basic calculator to scientific one in iphone

Many iphone 7 or similar models users don't know that they can make scientific calculations in the iphone.  you may be an engineer or a science student who needs an calculation, for example, making exponential, trigonometric, logaritmic calculations or taking a degree root of a certain number. You can use iphone's calculator  to do these calculations.
Thus, you have learn the procedure to do these calculations. Firstly, you have to open the calculator application in the phone. After that , rotate the phone into a horizontal position instead of a vertical position, then you will see that basic calculators turns into a scientific one. This transformation occurs automatically as long as your device works properly. If the screen of your phone does not rotate, your phone is likely to have a problem. ıf it works as expected, you can make scientific calculation for your homeworks or projects usefully.