How to Set a Custom Message Tone for Galaxy S5
Other than the default notification tones for text messages, you can use a MP3 file or any other audio files and set it as a message tone on Galaxy ...
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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.