A small letter or number placed slightly higher than the normal text.

Usually means how many times to use the value in a multiplication (also called an "exponent" or "power").

Examples:

• the number 2 here: **A ^{2}** (meaning A squared)

• the number 3 here:

**x**(meaning x cubed)

^{3}Note: when the letter is down low it is a "subscript".