How to include Square root sign as depicted in the following image in android?

Question

I need to include the following square root sign in my android as a Text resource in Button control. Any guesses?

Answer 1

The unicode code for square root symbol is 221A. You can define string resource as:

<string name="square_root_symbol">\u221a</string>

And then use it in your button:

<Button ... android:text="@string/square_root_symbol" />

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Answer 2

Copy this and paste in your String resource file.

<string name="sqr_root">√¯¯</string>

Here is the Result: