How to Verify Apps Before Installing on Galaxy S4
You may harm your Android phone by installing apps from sources other than Play Store. On Samsung Galaxy S4, "Verify Apps" warn or block before ...
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How to Enable Scientific Calculator on Galaxy S3
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.
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