Most Android users know the problem that at first look the calculator only provides the basic functions and therefore install another calculator app from the Play Store.

Not all users know that the device, as well as the Oneplus smartphone, has to be turned horizontally in order to get more functions.

On the OnePlus device, we can display additional or extended calculation functions by either rotating the device or simply pulling the bar of hidden additional functions, such as the angle options sine, cosine, tangent or a root calculation, upwards.

Note: For the horizontal view of the advanced calculator functions, "Auto-rotate" must be enabled.

Android 10 | OxygenOS 10.0
Scientific calculator -  Open the  Calculator app
Scientific calculator -  Swipe  upwards  to open the additional features
  1. Open the Calculator app
  2. Swipe upwards to open the additional features

OnePlus Instructions