Can you tell me what this sign means

Question

^

Answer 1

The number that follows ^ indicates the power.

Examples:
3^2 = 3 squared
3^3 = 3 to the third power
3^4 = 3 to the fourth power

Answer 2

You probably won't see or use the ^ symbol in class or your textbook, but it is commonly used here and in other computer forums where the typing options are limited. You can also have Google do calculations for you if you usxe the ^ exponent symbol.

For example,
http://www.google.com/search?source=ig&hl=en&rlz=&q=2+*+%284%5E3%29+%3D+&btnG=Google+Search