How to Delete a Contact on Telegram for Android
If you block a contact on Telegram, you no longer receive messages from him. But if you delete a contact, you still receive messages but you won't ...
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At the first look, the default calculator of your Galaxy device, is a simple calculator with some general operations. If you want to turn it to a scientific calculator, you just need to rotate your device to left or right, while the application is open.
As you see, you are able to use more functions such as Log, Ln, Sin, Cos, Tan, X! and more...
** To enable Screen Rotation, drag down the notification bar and make sure "Screen Rotation" is active.